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SERVICE MANUAL

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Troubleshooting

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   Summary of Contents for Fujitsu AUXB04GALH

  • Page 1

    SERVICE MANUAL...

  • Page 2: Table Of Contents

    CONTENTS 1. TEST RUN 1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS......01-01 1-2 TEST RUN METHOD....................01-03 1-2-1 Check Items Before Power ON................01-03 1-2-2 Check Items After Power ON................01-04 1-2-3 Automatic address setting procedure for Signal amplifiers........01-06 1-2-4 Automatic address setting procedure for indoor units.......... 01-07 1-2-5 Indoor unit connection check procedure .............

  • Page 3

    CONTENTS 3. INDOOR UNIT OPERATION 3-1 FAN CONTROL......................03-01 3-1-1 Fan Speed Setting....................03-01 3-1-2 "AUTO" Position....................03-01 3-2 MASTER CONTROL....................03-02 3-2-1,2 Operation Mode Control..................03-02 3-2-3,4 Auto Changeover ....................03-05 3-2-5,6,7,8 "COOL"/"HEAT”Position ................03-08 3-3 LOUVER CONTROL....................03-10 3-4 ELECTRONIC EXPANSION VALVE CONTROL............

  • Page 4

    CONTENTS 4. TROUBLE SHOOTING 4-1 NORMAL OPERATION....................04-01 4-1-1 Indoor Unit Display....................04-01 04-02 4-1-2 Outdoor Unit Display................... 4-2 ABNORMAL OPERATION..................04-03 04-03 4-2-1 Indoor Unit Display....................4-2-2 Outdoor Unit Display................... 04-04 04-05 4-2-3 Error Code List for Outdoor Unit................04-06 4-2-4 Remote Controller Display...................

  • Page 5

    1. TEST RUN...

  • Page 6: Execution Procedure And Execution Precautions

    1. TEST RUN 1-1 EXECUTION PROCEDURE AND EXECUTION PRECAUTIONS Before execution Execution procedure and precautions Reason Do not install the units in the place not recommended in the installation The performance may drop significantly Location decision manual. due to the protection controlling Check the characteristics of the refrigerant used and grasp the Use of a refrigerant other than the Confirmation of Refrigerant used...

  • Page 7

    Execution 2/2 Execution procedure and precautions Reason If taken from the air phase, since the Confirm the additional refrigerant amount with the installation Addition refrigerant charging composition of the refrigerant which is manual, etc. charged will change, low performance Always take the R410A refrigerant from the cylinder liquid phase and abnormal stop will occur easily.

  • Page 8: Test Run Method

    1-2 TEST RUN METHOD 1-2-1 Check Items Before Power ON Procedure Check contents Judgement standard Check Circuit breaker capacity Outdoor unit: AJ*072/090LELAH: 20A / AJ*108LELAH: 25A Indoor unit: 20A Leakage current: 100 mA 0.1sec or less Install a breaker (Included with Earth Leakage Circuit Breaker) in accordance Power with the related laws and regulations.

  • Page 9: Check Items After Power On

    1-2-2 Check Items After Power ON [Note] Cooling test run for each refrigerant circuit. If multiple refrigerant circuits are test run at the same time, refrigerant circuit address setting errors cannot be detected. Procedure Check contents Judgement standard Check Outdoor unit circuit breaker ON Check lighting of Main PCB LED101 and 7-segment display.

  • Page 10

    Procedure Check contents Judgement standard Check <Indoor unit service tool + actual measurement> Fan operation Shall be switched to all fan speeds in the cooling mode. Louver operation (except duct) Louver shall be switched to all positions. Shall also swing. Indoor unit Outlet air temperature Inlet air temperature and outlet air temperature difference shall be 10°C or...

  • Page 11

    1-2-3 Automatic address setting for signal amplifiers When using signal amplifiers When setting the address of the signal amplifier, SWITCH POSITION please use the factory setting. (See the installation manual of the signal amplifier) POWER ERROR MODE When the system is normal, nothing will be displayed on 7 Segment LED101 LED102...

  • Page 12

    1-2-4 Automatic address setting for Indoor units Check that the rotary switch IU AD on the indoor unit SWITCH POSITION Main PCB is set to “00”. If it is not set to “00”, POWER ERROR MODE it means the address of that device is not set. (Factory default is “00”).

  • Page 13

    1-2-5 Indoor unit connection check SWITCH POSITION POWER ERROR MODE 7 Segment LED101 LED102 LED Lamp (GREEN) (RED) LED105 LED104 MODE Outdoor unit printed circuit board SELECT ENTER Push button switch /EXIT SW107 SW108 SW109 Please perform the indoor unit connection check according to following procedures. •...

  • Page 14

    1-2-6 Test Run From Outdoor Main PCB All the indoor units connected to the outdoor unit can be test-operated by push button setting. SWITCH POSITION POWER ERROR MODE 7 Segment LED101 LED102 LED Lamp (GREEN) (RED) LED105 LED104 Outdoor unit printed circuit board MODE SELECT ENTER...

  • Page 15: Test Run From Remote Controller

    1-2-7 Test Run From Remote Controller UTY - RNK 1. Standard wired remote controller Stop the indoor unit. Push the button and button simultaneously for more than two seconds. The air conditioner will start to conduct a test run and " "...

  • Page 16: Central Remote Controller

    4. Central remote controller UTY-DCG Test run operating procedure LED lamp < Monitor screen : 9 units display > 1) Press Button Function buttons( F1-5 ) 2) Press the [ Setup Menu (F2) ] button Monitor - All 05/31 03:59 [ Arrow ] Monitor Select...

  • Page 17

    UTY - DTG 5. Touch panel controller Test run operating procedure <Monitor screen (icon)> Monitor Mode Status: On 10/11.2008.Mar. 02:20 PM Setting Lange Group Down List Office B PC Room Office A Schedule Heat Cool Cool 21.0 C 26.0 C 21.5 C Restrant Entrance...

  • Page 18

    <Setting screen> Operation Setting Status: On 10/11.2008.Mar. 02:20 PM Control Unit : Meeting Room R/C Prohibition operation Mode Set Temp. Fan Auto Auto On/Off 24.0 C ( * ) Cool High Mode Air Flow Direction Economy Temp. Anti Freeze Filter Sign Test Operation Heat Quiet...

  • Page 19

    6. 2-Wire type wired remote controller UTY - RNR (1) Press "Menu" on the monitor screen. the < Main Menu screen > is displayed. (2) Press "Next Page" and press "Maintenance" (3) Press "Next Page" and press "Test Run". the <Test run screen > is displayed. (4) Press "OK"...

  • Page 20: Test Run Control

    1-3 TEST RUN CONTROL 1. When the test run signal is transmitted from standard wired, wireless remote controller, simple remote controller, transmitted network, and outdoor unit. (1) The test run operation starts and the electric expansion valve is controlled to a maximum flow, regardless of the temperature condition.

  • Page 21: Field Setting And Monitor Mode List For Outdoor Unit

    1-4 FIELD SETTING AND MONITOR MODE LIST FOR OUTDOOR UNIT ITEM Classification Setting Mode Information contents CODE No. The number of the communicating unit is displayed Push switch on Device and Connected number of indoor unit system outdoor unit PCB Software version of outdoor unit Software version : Monitor mode...

  • Page 22

    ITEM ITEM Classification Setting Mode Information contents Default CODE No. CODE No. Install Pipe length setting 40-65m Push switch on 0-40m outdoor unit PCB 65-90m 90-120m Correction Forbidden Factory defalt Monitor mode Cooling capacity shift Normal mode [ F2 ] Save energy mode +2 °C High power mode 1 -2...

  • Page 23

    ITEM Classification Setting Mode Setting Function CODE No. Forced thermostat-ON in Cooling. Cooling test run Push switch on Forced operation outdoor unit PCB Heating test run Forced thermostat-ON in Heating. Monitor mode [ F3 ] Test run stop Test run is stopped. 03,04 Forbidden Signal amplifier automatic address...

  • Page 24: Field Setting / Function Setting For Indoor Unit

    1-5 FIELD SETTING / FUNCTION SETTING FOR INDOOR UNIT Function Function Setting number Default Details number Address Indoor unit address 00~63 00~99 Ref. circuit address Standard Adjust the filter cleaning interval notification. If the notification is too Filter early, change to setting 01. If the notification is too late, change to indicator Longer setting 02.

  • Page 25

    Function Function Setting number Default Details number Enable *1 Auto Enable or disable automatic system restart after a power outage. restart Disable Super low Cool Air Restrain the cold airflow with making the airflow lower when starting Follow the setting Prevention heating operation.

  • Page 26: Field Setting / Function Setting For Outdoor Air Unit

    1-6 FIELD SETTING / FUNCTION SETTING FOR OUTDOOR AIR UNIT Function Function Setting number Default Details number Adjust the filter cleaning interval notification. If the notification is too Standard Filter early, change to setting 01. If the notification is too late, change to indicator Longer setting 02.

  • Page 27

    2. OUTDOOR UNIT OPERATION CONTROL...

  • Page 28: Input / Output List

    2. OUTDOOR UNIT 2-1 INPUT / OUTPUT LIST Input / output or kind of detail Control range Discharge pressure sensor <HIGH> Pressure sensor Measure range 0.0 to 5.0MPa Suction pressure sensor <LOW> Pressure sensor Measure range 0.0 to 1.7MPa Discharge temperature sensor <TH1>...

  • Page 29: Compressor Operation

    2-2 COMPRESSOR OPERATION 2-2-1 Operation / Stop Condition When cooling requirement capacity or heating requirement capacity from either of the indoor units in the same refrigerant circuit is input, the compressor operates. When all the indoor units in no "cooling requirement capacity" or "heating requirement capacity", the compressor is stopped.

  • Page 30: Speed Range Of Start,stop,and Operation

    (2) Target low-pressure and high-pressure control <Cooling> In order to make the evaporation pressure of the indoor unit at the proper pressure on a variety of operations, capacity of the compressor will be controlled by low-pressure sensor of the outdoor unit. <Heating>...

  • Page 31: Fan Control

    2-3 FAN CONTROL 2-3-1 Cooling Operation Fan speed (rpm) Fan step AJ*072LELAH AJ*090LELAH AJ*108LELAH Upper FAN Step Lower FAN Intermittent 1 : 14 sec. ON (300rpm), 17 sec. OFF Intermittent 2 : 19 sec. ON (300rpm), 17 sec. OFF Intermittent 1 Intermittent 1 Intermittent 1 Intermittent 2...

  • Page 32: Heating Operation

    2-3-2 Heating Operation Fan speed (rpm) Fan step AJ*072LELAH AJ*090LELAH AJ*108LELAH Upper FAN Step Lower FAN Intermittent 1 : 14 sec. ON (300rpm), 17 sec. OFF Intermittent 2 : 19 sec. ON (300rpm), 17 sec. OFF Intermittent 1 Intermittent 1 Intermittent 1 Intermittent 2 Intermittent 2...

  • Page 33: Low Noise Mode

    2-3-3 Low noise mode When the low noise mode setting ON from PUSH SW or EXTERNAL INPUT, the outdoor unit operates in the low noise mode as follows. « » Settings and corresponding operations Capacity priority setting Low noise level setting Operation mode ( PUSH SW ) ( PUSH SW )

  • Page 34: Other Control

    2-3-4 Other Control To accurately detect the outside air temperature, the fan is operated while the outdoor unit is stopped. 2-4 EXPANSION VALVE CONTROL Control range Initialization Operation mode conditions operation stop Cooling 3000 Plulses 40 pulses EEV 1 When power Heating 160 - 3000 pulses turned on...

  • Page 35: Special Operation

    2-5 SPECIAL OPERATION 2-5-1 Oil Recovery Operation Purpose of the operation The amount of refrigerant lubricant oil which has been transported to the indoor units and the connection pipe with the refrigerant will become large as the operation time of compressor increases. It is necessary to recover the oil back into the outdoor unit for a certain time interval in order to prevent compressors from damaging due to lack of lubrication oil.

  • Page 36: Pre-heat Operation

    2-5-2 Pre-heat Operation This pre-heat operation protects the start up failure by preventing the refrigerant from soaking into the oil in compressor. Crankcase heater ON: 30 minutes elapsed since installed compressors stopped (However, ON when power turned on) OFF: Compressor starts *It doesn't control according to the temperature.

  • Page 37: Protective Function

    2-6 PROTECTIVE FUNCTION 2-6-1 Protective Function List Protective Function Operating Condition Operation Detect Parts COOL HEAT DISPLAY Discharge Temp Discharge Temp <Starting conditions> EEV of operating indoor unit gradually opened 3 minutes have elapsed since the start of operation and Protection 1 Thermistor (discharge temperature...

  • Page 38

    Protective Function Operation Detect Parts Operating Condition DISPLAY COOL HEAT High Pressure High Pressure <Pattern starting condition> Compressor stopped High-pressure 4.00MPa Protection Stop 1 Sensor <Pattern reset condition> 5 minutes have elapsed and high-pressure 3.50MPa EA41 <Pattern starting condition> Compressor stopped Pattern generated 3 times within 60 minutes.

  • Page 39: Operating Condition

    Protective Function Operation Detect Parts Operating Condition DISPLAY COOL HEAT E941 Compressor is stopped when the over currernt protectioncircuit in the Compressor stopped Overcurrent Break Overcurrent inverter PCBoad detects an abnormal current duringthe operation. Stop Protection Circuit (permanent stop) If it repeated 5 times, the compressor becomes permanentstop. (Compressor) E931 Compressor is stopped when the over current protection circuit in the...

  • Page 40: Indoor Unit Operation

    3. INDOOR UNIT OPERATION...

  • Page 41: Fan Control

    3. INDOOR UNIT OPERATION 3-1 FAN CONTROL 3-1-1 Fan Speed Setting Fan speed setting Press the FAN CONTROL button to set the fan speed. AUTO HIGH 3-1-2 "AUTO" Position Fan speed zone 1. COOLING OPERATION The fan speed is determined automatically in accordance Hi zone with the condition "(T (corrected room temperature) - T...

  • Page 42: Master Control

    3-2 MASTER CONTROL 3-2-1 Operation Mode Control Each operation mode is controlled as below. (1) Stop mode Indoor fan motor : OFF Electric expansion valve : Stop pulse Drain pump : Turns ON-OFF by the drain pump control function (2) Cool, Dry and Heat Mode Cool Heat Indoor fan motor...

  • Page 43

    Method 3. (Management by indoor unit) Operation mode management is made "Management by indoor unit" by outdoor unit PUSH-SW (field setting). Then the master indoor unit is set by wired remote controller. Thereupon the priority mode shifts to Cooling Priority or Heating Priority in accordance with input from the master indoor unit regardless of the current priority mode.

  • Page 44

    3-2-1 Operation Mode Control for Outdoor air unit Each operation mode is controlled as below. (1) Stop mode Outdoor air unit fan motor : OFF Electric expansion valve : Stop pulse Drain pump : Turns ON-OFF by the drain pump control function Solenoid valve : Closed (2) Cool and Heat Mode...

  • Page 45

    (3) Priority mode The purpose of the priority mode is to restrict operation commands (heating, cooling) from the connected outdoor air units. There are 3 priority modes of Neutral, Cooling Priority, and Heating Priority. The operation modes restricted by each of these modes are as follows: Restricted operation mode Priority mode No restrictions...

  • Page 46: 3-2-3,4 Auto Changeover

    3-2-2 Auto Changeover [Method] 1. Switch operation mode management to "Management by indoor unit" by outdoor unit DIP-SW. 2. Set the master indoor unit by wired remote controller. 3. Judge cooling/heating by the difference between the master indoor unit's setting temperature and the room temperature.

  • Page 47

    3-2-2 Auto Changeover Heating / Cooling Operation for Outdoor air unit Function is available when an outdoor air unit set as the administrative indoor unit (Management Outdoor air unit). Refer to the setting Method Setting Method 1. Switch operation mode management to "Management by outdoor air unit" by Outdoor unit PUSH-SW. 2.

  • Page 48: 3-2-5,6,7,8 "cool"/"heat"position

    3-2-3 "COOL" Position When using the cooling mode, set the temperature to a value lower than the current room temperature, otherwise the indoor unit will not start the cooling operation and only the fan will rotate. An example for COOLING TEMPERATURE CONTROL time chart (Manual setting) Ts + 0.5 C •...

  • Page 49

    3-2-4 "COOL" Position for Outdoor air unit When using the cooling mode, set the temperature to a value lower than the discharge airflow temperature, otherwise the outdoor air unit will not start the cooling operation and only the fan will rotate. An example for COOLING TEMPERATURE CONTROL time chart (Manual setting) Outdoor temp.

  • Page 50: Louver Control

    3-3 LOUVER CONTROL (1) ADJUSTING THE DIRECTION OF AIR CIRCULATION Instructions relating to heating ( ) are applicable only to heat pump type outdoor unit. Begin air conditioner operation before performing this procedure. Vertical Air Direction Adjustment This instructions are applicable to "LARGE CEILING TYPE", "UNIVERSAL FLOOR/CEILING TYPE", "CASSETTE TYPE", "WALL MOUNTED TYPE", "COMPACT WALL MOUNTED TYPE"...

  • Page 51

    Horizontal Air Direction Adjustment This instructions are applicable to "LARGE CEILING TYPE", "UNIVERSAL FLOOR/CEILING TYPE" and "WALL MOUNTED TYPE". Press the HORIZONTAL AIR FLOW DIRECTION SET button. Press the HORIZONTAL AIRFLOW DIRECTION button. The temperature display will change to the horizontal airflow direction setting display. Press the HORIZONTAL AIRFLOW DIRECTION button to change the horizontal louvre position.

  • Page 52

    Instructions are applicable to "LARGE CEILING TYPE", "UNIVERSAL FLOOR / CEILING TYPE", "CASSETTE TYPE", "WALL MOUNTED TYPE", "COMPACT WALL MOUNTED TYPE", and "COMPACT FLOOR TYPE". About Vertical Airflow SWING Operation Air swing range The SWING operation may stop temporarily when the Air flow direction set Range of swing air conditioner's fan is not operating, or when operating...

  • Page 53: Electronic Expansion Valve Control

    3-4 ELECTRONIC EXPANSION VALVE CONTROL 1. Initialization When the power is turned ON. When it has passed the limited time since the last initialization. 2. Operation Control When indoor unit stopping Outdoor unit Condition EEV Condition Fully closed Cooling Fully closed Heating Slightly open When starting up...

  • Page 54

    3-4 ELECTRONIC EXPANSION VALVE CONTROL for Outdoor air unit 1. Initialization When the power is turned ON. When it has passed the limited time since the last initialization. 2. Operation Control When indoor unit stopping by Thermo-OFF condition. Outdoor unit Condition EEV Condition Fully closed Cooling...

  • Page 55: Function

    3-6 FUNCTION 3-6-1 Auto Restart The air conditioner restarts with the previous setting operation. 3-6-2 Icing Protection Control The icing of the indoor heat exchanger is prevented during the cooling and dry mode operation. (1) Starting Condition Compressor is operation more than 3 minutes. When "Heat exchanger inlet temperature "...

  • Page 56: Outdoor Temperature Protected Operation For Outdoor

    3-6-4 Outdoor temperature protected operation for Outdoor air unit 1. COOL OPERATION The contents of operation is controlled as following based on the suction airflow temperature. a) Operation mode management is made "Management by indoor unit", and outdoor air unit is master indoor unit. b) Cases Other than (a) Suction airflow Suction airflow...

  • Page 57: Timer Control

    3-7 TIMER CONTROL 3-7-1 Wireless Remote Controller UTY - LNH There are following 4 kinds of timer modes are available. ON Timer OFF Timer PROGRAM Timer SLEEP Timer 1. ON / OFF TIMER The timer functions cannot be used when this controller is used together with the remote controller (Wired type). A beeping sound is made when a signal is received.

  • Page 58

    Sleep timer The sleep timer function automatically corrects the temperature thermostat setting according to the time setting to prevent excessive cooling and heating while sieeping. Cooling operation / dry operation Heating operation When the sleep timer is set, the set temperature When the sleep timer is set, the set temperature automatically rises 1°C every hour.The set sutomatically drops 1°C every 30 minutes.

  • Page 59: Group Remote Controller

    3-7-2 Group Remote Controller UTY - CGG Different schedules can be set for each day of the week. WEEKLY TIMER Four timers can be set for each day 1. WEEKLY TIMER The timer function is not available depending on the initial setting. Different schedules can be set for each day of the week.

  • Page 60

    Operating setting Press the Start/Stop button or the Mode button or the Set Temperature button to set the operation. * For the operations that can be set, refer to "Operation mode setting", "Room tem- perature setting", and "To start /stop operation" , in "OPERATION". * Only the current operation settings are displayed.

  • Page 61: Wired Remote Controller

    3-7-3 Wired Remote Controller UTY - RNK ON / OFF TIMER WEEKLY TIMER TEMPERATURE SET BACK TIMER 1. ON / OFF TIMER The timer function is not available depending on the model. To set the ON/OFF timer SU MO TU WE TH FR SA Press the timer mode button to se- lect the ON timer or OFF timer.

  • Page 62

    2. WEEKLY TIMER The timer function is not available depending on the model. Weekly timer setting SU MO TU WE TH FR SA 3 6 9 12 15 18 21 Press the SET button for 2 sec- Press the timer mode button to select the weekly timer. onds or more.

  • Page 63

    To start /cancel the WEEKLY timer operation To start To cancel The independent timer will flash on the display. Press the TIMER DELETE button to 3 6 9 12 15 18 21 cancel the timer mode. ex.Operating time 7:00-18:00 The timer mode can also be canceled Indpnd.

  • Page 64

    3. TEMPERATURE SET BACK TIMER The timer function is not available depending on the model. Temperature SET BACK timer setting SET BACK SU MO TU WE TH FR SA If there is no existing SET BACK tempera- ture setting, " - - " will be displayed for the 3 6 9 12 15 18 21 temperature.

  • Page 65: Dx-kit

    3-8 DX-KIT 3-8-1 SYSTEM CONFIGURATION 1. FGL remote/controller connection The DX kit is controlled by a VRF operation device and use the external output of the DX kit to performe the AHU operation indirectly. Control devices can be unified with FGL devices. FGL RC.

  • Page 66: Fundamental Functions

    3-8-2 FUNDAMENTAL FUNCTIONS 1. FGL remote/controller connection Air conditioning Intake temperature control Discharge temperature control control system (SET3-3) Intake temperature (Room temperature) Discharge temperature Set temperature Cooling: 18 to 30 Cooling: 14 to 25 objective Heating: 10 to 30 Heating: 17 to 28 Cooling Cooling Thermostat OFF...

  • Page 67: Cooling Operation

    3-8-3 FUNDAMENTAL FUNCTIONS Cooling operation When using the cooling mode, set the temperature to a value lower than the target controlling temperature, otherwise the External refrigeration cycle equipment will not start the cooling operation. An example for COOLING TEMPERATURE CONTROL time chart + 0.5 C: Air intake ctrl C: Air discharge ctrl •...

  • Page 68: Electrical Expansion Valve Control For Dx-kit

    3-8-4 ELECTRICAL EXPANSION VALVE CONTROL for DX-KIT 1. Initialization When the power is turned ON. When it has passed the limited time since the last initialization. 2. Operation Control When indoor unit stopping by Thermo-OFF condition. EEV Condition Outdoor unit Condition Fully closed Cooling Fully closed...

  • Page 69: Function

    3-8-6 FUNCTION Auto Restart The air conditioner restarts with the previous setting operation. Freeze Prevention Control The icing of the indoor heat exchanger is prevented during the cooling and dry mode operation. (1) Starting Condition Compressor is operation more than 3 minutes. When "Heat exchanger inlet temperature "...

  • Page 70: Trouble Shooting

    4. TROUBLE SHOOTING...

  • Page 71: Normal Operation

    4. TROUBLESHOOTING 4-1 NORMAL OPERATION 4-1-1 Indoor Unit Display Indication type Indication Lamp Flashing Pattern Operation Continuous lighting Operation LED Anti Freeze Continuous lighting(lowered light) Timer Timer LED Continuous lighting(lowered light) Filter Filter LED Continuous lighting 1 sec 1 sec Operation LED Power Failure 1 sec...

  • Page 72: Outdoor Unit Display

    4-1-2 OUTDOOR UNIT DISPLAY Indication type 7 Segment LED Pattern Description Idling(stop) Blank Cooling Mode "C" OO "L" Heating Mode "H" EA "T" Refer to 02-08 page for operation. Oil Recovery Operation "O" IL "R" ECOVERY Defrost Operation Refer to 02-09 page for operation. "D"...

  • Page 73: Abnormal Operation

    4-2 ABNORMAL OPERATION 4-2-1 Indoor Unit Display Please refer the flashing pattern as follows. Trouble Error Contents Operation LED Timer LED Filter LED shooting 1 times flash 2 times flash Continuous flash 1, 2, 3 Wired Remote Controller Communication Error Network Communication Error 1 times flash 4 times flash...

  • Page 74: Outdoor Unit Display

    4-2-2 Outdoor Unit Display LED display POWER LED101 POWER ERROR POWER MODE LED : on MODE 0.1sec 0.1sec ERROR LED : blink LED101 LED102 ERROR (GREEN) (RED) LED102 Operation button MODE SELECT ENTER EXIT SW107 SW108 SW109 ERROR transition Short press : less than 3 seconds Long press : more than 3 seconds Annunciation "Err."...

  • Page 75: Error Code List For Outdoor Unit

    4-2-3 Error Code List for Outdoor Unit Error Trouble Error Contents Error Trouble Code shooting Error Contents Code shooting - - - - Initial Setting Error Suction Pressure Sensor Error 8 6 . 3 1 4 . 2 Outdoor unit Network communication abnormal 2 High Pressure Switch Error 8 6 .

  • Page 76: Remote Controller Display

    4-2-4 Remote Controller Display << SIMPLE REMOTE CONTROLLER >> UTY-RSKU , UTY-RHKU ERROR CODE DISPLAY Error code If an error occurs, the following display will be shown. ( “ “ will appear in the set room temperature display.) If “ “...

  • Page 77: Error Code List For Simple And Wired Remote Controller

    4-2-5 Error Code List for Simple and Wired Remote Controller Error Trouble Error Trouble Error Contents Error Contents Code shooting Code shooting Remote Controller Indoor unit Communication circuit (WRC) Error 1, 2, 3 Communication Error Network Communication Error Room Temperature Sensor Error 4, 5, 6 Incompatible Indoor units connected Indoor Unit Heat Ex.

  • Page 78: Troubleshooting - No Error Code

    4-2-7 Trouble shooting - No Error code - Trouble Error condition No Error Code shooting Indoor Unit - No Power Outdoor unit - No Power No operation (Power is ON ) System Abnormal No Cooling Abnormal Noise Indoor Unit - No Power(Outdoor air unit) 4-2-8 Error Code List for External Switch Controller (UTY-TEKX) Trouble Error Contents...

  • Page 79: Trouble Shooting 1

    4-2-12 TROUBLE SHOOTING WITH ERROR CODE Indicate or Display: Trouble shooting 1 E12.1 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 1 times Flash, Timer LED 2 Times Flash, Wired Remote Controller Filter LED Continuous Flash. < 1 2 > Communication Error Error Code : 1 2...

  • Page 80

    Indicate or Display: Trouble shooting 2 E12.2 Outdoor Unit : E.5 U.1, INDOOR UNIT Error Method: Indoor Unit : Operation LED 1 times Flash, Timer LED 2 Times Flash, Wired Remote Controller signal Error Filter LED Continuous Flash. Remote Controller : 1 2 Detective Actuators: Detective details: Indoor unit Controller PCB circuit...

  • Page 81

    Indicate or Display: Trouble shooting 3 E12.3 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 1 times Flash, Timer LED 2 Times Flash, Number excess of device in Wired Filter LED Continuous Flash. remote contorller system (2 Wires RC) Error Code : 1 2 Detective Actuators:...

  • Page 82

    Indicate or Display: Trouble shooting 4 E14. 2 Outdoor Unit : E. 1 4. 2 OUTDOOR UNIT Error Method : : Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Unit Network Filter LED Continuous Flash. / Communication 2 Error Operation LED 1 times Flash, Timer LED 4 Times Flash, Filter LED Continuous Flash.

  • Page 83

    Indicate or Display: Trouble shooting 5 E14. 3 Outdoor Unit : E.1 4. 1 / 1 4. 2 * INDOOR UNIT Error Method: Indoor Unit : Operation LED 1 times Flash, Timer LED 4 Times Flash, Indoor unit Network communication Filter LED Continuous Flash.

  • Page 84

    Indicate or Display: Trouble shooting 6 E14. 5 Outdoor Unit : E.1 4. 5 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, The number of Indoor unit shortage Filter LED Continuous Flash. / Error Error Code : 9 U / 1 4 / 1 6 / 1 4.

  • Page 85

    Indicate or Display: Trouble shooting 7 E16. 1 Outdoor Unit : E.1 4.1, 1 4.2 * INDOOR UNIT Error Method: Indoor Unit : Operation LED 1 times Flash, Timer LED 6 Times Flash, Filter LED Continuous Flash. Transmission PCB Connection Error Error Code : 1 6 * * Outdoor unit indicates 1 4.1 or 14.2 (No communication from Indoor unit)

  • Page 86

    Indicate or Display: Trouble shooting 8 E16. 4 Outdoor Unit : No Display INDOOR UNIT Error Method: Indoor Unit : No Display Communication Error Between Controller and Indoor unit Error Code : 1 6 (Peripheral Unit ) Detective Actuators: Detective details: Indoor unit Controller PCB circuit When the cut-off of network communication is detected (more than 90 seconds Indoor unit Communication PCB...

  • Page 87

    Trouble shooting 9 E26. 4 Indicate or Display: Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 2 times Flash, Timer LED 6 Times Flash, Address Duplication in Wired remote Filter LED Continuous Flash. contorller system Error Code : 2 6 Detective Actuators:...

  • Page 88

    Indicate or Display: Trouble shooting 10 E26. 5 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 2 times Flash, Timer LED 6 Times Flash, Address setting Error in Wired remote Filter LED Continuous Flash. contorller system Error Code : 2 6...

  • Page 89

    Indicate or Display: Trouble shooting 11 E29. 1 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 2 times Flash, Timer LED 9 Times Flash, Connection unit number error (Indoor Filter LED Continuous Flash. unit in Wired remote controller system) Error Code : 2 9 Detective Actuators:...

  • Page 90

    Indicate or Display: Trouble shooting 12 E29. 2 Outdoor Unit : No Display INDOOR UNIT Error Method: Indoor Unit : No Display Connection unit number error (Remote controller) Error Code : 2 9 Detective Actuators: Detective details: When the number of connecting remote controller are out of specified rule. Wired remote controller ( 2-Wire ) Forecast of Cause : 1.

  • Page 91

    Indicate or Display: Trouble shooting 13 E31. 3 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 3 times Flash, Timer LED 1 Times Flash, Indoor unit Power Frequency Filter LED Continuous Flash. Abnormal Error Code : 3 1 Detective Actuators: Detective details:...

  • Page 92

    Trouble shooting 14 E32. 1 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : E.5 U.1 Indoor Unit : Operation LED 3 times Flash, Timer LED 2 Times Flash, Indoor unit PCB Model Information Filter LED Continuous Flash. Error Error Code : 3 2 Detective Actuators:...

  • Page 93

    Indicate or Display: E32. 3 Trouble shooting 15 INDOOR UNIT Error Method: Outdoor Unit : E.5 U.1 Indoor Unit : Operation LED 3 times Flash, Timer LED 2 Times Flash, Indoor unit EEPROM Access Error Filter LED Continuous Flash. Error Code : 3 2 Detective details: Detective Actuators:...

  • Page 94

    Indicate or Display: Trouble shooting 16 E32. 7 INDOOR UNIT Error Method: Outdoor Unit : E.5 U.1 Indoor Unit : Operation LED 3 times Flash, Timer LED 2 Times Flash, Indoor unit microcomputer Filter LED Continuous Flash. self-check error Error Code : 3 2 Detective details: Detective Actuators:...

  • Page 95

    Indicate or Display: E.39.1 Trouble shooting 17 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Error Code : 39.1 Indoor Unit power supply error for FAN motor 1 (Outdoor Air unit) Detective details: Detective Actuators: When the DC power input for Fan motor < W500 - W501 on Indoor Unit Controller PCB Circuit the Filter PCB>...

  • Page 96

    Indicate or Display: E.39.2 Trouble shooting 18 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Error Code : 39.2 Indoor Unit power supply error for FAN motor 2 (Outdoor Air unit) Detective details: Detective Actuators: When the DC power input for Fan motor < W530 - W531 on Indoor Unit Controller PCB Circuit the Filter PCB>...

  • Page 97

    Trouble shooting 19 E39. 3 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : E.5 U.1 Indoor Unit Power Supply Error Error Code : 3 9 of AC24V System Detective details: Detective Actuators: When the AC voltage of the Power Trans output , Is lower than 24V. Indoor Unit Power Supply PCB Circuit Indoor Unit Power Trans Indoor Unit Controller PCB...

  • Page 98

    Trouble shooting 20 E3A. 1 Indicate or Display: Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 3 times Flash, Timer LED 10 Times Flash, Indoor unit communication circuit (WRC) Filter LED Continuous Flash. microcomputers communication Error Error Code : 3 A Detective Actuators:...

  • Page 99

    Indicate or Display: Trouble shooting 21 E41. 1 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 4 times Flash, Timer LED 1 Times Flash, Filter LED Continuous Flash. Inlet air temp. Sensor Error Error Code : 4 1 Detective details: When Inlet air temp.

  • Page 100

    Indicate or Display: Trouble shooting 22 E42. 1 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 4 times Flash, Timer LED 2 Times Flash, Indoor unit Heat Ex. inlet temp. Filter LED Continuous Flash. sensor Error Error Code : 4 2...

  • Page 101

    Indicate or Display: Trouble shooting 23 E42. 3 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 4 times Flash, Timer LED 2 Times Flash, Indoor unit Heat Ex. outlet temp. Filter LED Continuous Flash. Sensor Error Error Code : 4 2...

  • Page 102

    Indicate or Display: Trouble shooting 24 E.4.A.1 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Error Code : 4 A, 4 A. 1 Indoor unit suction air temp. thermistor error (Outdoor Air unit ) Detective Actuators: Detective details: Indoor Unit Controller PCB Circuit When Indoor unit suction air temp.

  • Page 103

    Trouble shooting 25 E.4.A.2 Indicate or Display: Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Error Code : 4 A, 4 A. 2 Indoor unit discharge air temp. thermistor error (Otudoor Air unit) Detective Actuators: Detective details: Indoor Unit Controller PCB Circuit When Indoor unit discharge air temp.

  • Page 104

    Trouble shooting 26 E51. 2 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : E.5 U.1 Indoor Unit : Operation LED 5 times Flash, Timer LED 1 Times Flash, Indoor Unit Fan Motor 1 rotation Filter LED Continuous Flash. speed Error Error Code : 5 1...

  • Page 105

    ( )*: for DX-Kit System E52. 1 Indicate or Display: Trouble shooting 27 Outdoor Unit : E.5U.1 (E52. 2)* INDOOR UNIT Error Method: Indoor Unit : Operation LED 5 times Flash, Timer LED 2 Times Flash, Coil 1 (2)* Expansion valve Error Filter LED Continuous Flash.

  • Page 106

    Indicate or Display: Trouble shooting 28 E53. 1 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Indoor Unit : Operation LED 5 times Flash, Timer LED 3 Times Flash, Indoor unit Drain pump Error Filter LED Continuous Flash. Error Code : 5 3 Detective Actuators: Detective details:...

  • Page 107

    E.59.2 Indicate or Display: Trouble shooting 29 Outdoor Unit : E.5 U.1 INDOOR UNIT Error Method: Error Code : 5 9, 5 9. 2 Indoor Unit Fan Motor 2 rotation speed Error Detective details: Detective Actuators: When the FAN motor feed back rotation value which is detecting on the controller PCB becomes 0 and lasts for more than 1 minute at motor opera Indoor Unit Controller PCB Circuit tion condition.

  • Page 108: Trouble Shooting With Error Code (outdoor Unit)

    4-3-2 Trouble Shooring With Error Code (OUTDOOR UNIT) Indicate or Display: Trouble shooting 30 Outdoor Unit : - - - - ( Flashing 0.5 sec. ON and OFF ) OUTDOOR UNIT Error Method: Indoor Unit : No Display Initial Setting Error Error Code : No Display Detective Actuators:...

  • Page 109

    E. 28. 1 Indicate or Display: Trouble shooting 31 Outdoor Unit : E. 28. 1 OUTDOOR UNIT Error Method: Indoor Unit : No Display Auto Address Setting Error Error Code : 28 Detective details: Detective Actuators: When none of the connected indoor units answers during auto address Outdoor unit Main PCB And when abnormal answer signal is input.

  • Page 110

    E. 28. 4 Indicate or Display: Trouble shooting 32 Outdoor Unit : E. 28. 4 OUTDOOR UNIT Error Method: Indoor Unit : No Display Signal Amplifier Auto Address Error Error Code : 28 Detective details: Detective Actuators: Outdoor unit Main PCB When abnormal answer signal is input during signal amplifier auto address 1.

  • Page 111

    Indicate or Display: Trouble shooting 33 E61. 5 Outdoor Unit : E. 6 1. 5 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Unit Reverse Phase, Filter LED Continuous Flash. Missing Phase Wire Error Error Code : 9 U / 6 1...

  • Page 112

    E. 62. 3 Indicate or Display: Trouble shooting 34 Outdoor Unit : E. 62. 3 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Unit EEPROM Access Error Filter LED Continuous Flash. Error Code : 62 Detective Actuators:...

  • Page 113

    E. 62. 6 Indicate or Display: Trouble shooting 35 Outdoor Unit : E. 62. 6 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Inverter Communication Error Filter LED Continuous Flash. Error Code : 62 Detective Actuators: Detective details:...

  • Page 114

    Indicate or Display: E. 62. 8 Trouble shooting 36 Outdoor Unit : E. 62. 8 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, EEPROM Data corrupted Error Filter LED Continuous Flash. Error Code : 62 Detective Actuators:...

  • Page 115

    E. 63.1 Indicate or Display: Trouble shooting 37 Outdoor Unit : E. 63. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Inverter Error Filter LED Continuous Flash. Error Code : 63 Detective Actuators: Detective details: Inverter PCB...

  • Page 116

    Indicate or Display: Trouble shooting 38 E. 67.2 Outdoor Unit : E. 67. 2 OUTDOOR UNIT Error Method: Indoor Unit : No Display Inverter PCB short interruption detection Error Code : 67 Detective Actuators: Detective details: Inverter PCB ''Momentary power failure" received from Inverter PCB Forecast of Cause : 1.

  • Page 117

    Indicate or Display: Trouble shooting 39 E68. 2 Outdoor Unit : E. 6 8. 2 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Rush Current Limiting Resistor Filter LED Continuous Flash. Temp Rise Protection Error Code : 9 U / 6 8...

  • Page 118

    Indicate or Display: Trouble shooting 40 E. 69.1 Outdoor Unit : E. 69. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Unit transmission PCB Filter LED Continuous Flash. Parallel Communication Error Error Code : 69 Detective Actuators:...

  • Page 119

    Indicate or Display: Trouble shooting 41 E. 71.1 Outdoor Unit : E. 71. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Discharge Temp Sensor Error<TH1> Filter LED Continuous Flash. Error Code : 71 Detective Actuators: Detective details:...

  • Page 120

    Indicate or Display: Trouble shooting 42 E. 72.1 Outdoor Unit : E. 72. 1 OUTDOOR UNIT Error Method: Compressor Temp Sensor Error Filter LED Continuous Flash. <TH10> Error Code : 72 Detective Actuators: Detective details: Compressor temperature thermistor 1 short detected Compressor temperature thermistor 1 Compressor thermistor 1 open detected after compressor 1 operated continuously for 5 minutes or more...

  • Page 121

    Indicate or Display: Trouble shooting 43 E. 73.3 Outdoor Unit : E. 73. 3 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Heat Ex. Liquid pipe Temp. Filter LED Continuous Flash. Sensor Error<TH5>...

  • Page 122

    Indicate or Display: Trouble shooting 44 E. 74.1 Outdoor Unit : E. 74. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Temp Sensor Error<TH3> Filter LED Continuous Flash. Error Code : 74 Detective Actuators: Detective details:...

  • Page 123

    Indicate or Display: Trouble shooting 45 E. 75.1 Outdoor Unit : E. 75. 1 OUTDOOR UNIT Error Method: Suction Gas Temp Sensor Error Filter LED Continuous Flash. <TH4> Error Code : 75 Detective Actuators: Detective details: Suction gas temperature thermistor short or open detected Suction gas temperature thermistor Forecast of Cause : 1.

  • Page 124

    Indicate or Display: Trouble shooting 46 E. 77.1 OUTDOOR UNIT Error Method: Outdoor Unit : E. 77. 1 Heat Sink Temp Sensor Error Filter LED Continuous Flash. Error Code : 77 Detective Actuators: Detective details: Heat sink temperature thermistor open/short circuit detected Inverter PCB Forecast of Cause : 1.

  • Page 125

    Indicate or Display: Trouble shooting 47 E. 82.2 Outdoor Unit : E. 82. 2 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Sub-cool Heat EX. Gas outlet Filter LED Continuous Flash. Temp Sensor Error<TH9>...

  • Page 126

    Indicate or Display: Trouble shooting 48 E. 83.2 OUTDOOR UNIT Error Method: Outdoor Unit : E. 83. 2 SC.HE. Liquid Outlet Sensor Error Filter LED Continuous Flash. <TH7> Error Code : 83 Detective Actuators: Detective details: SC.HE.Liquid Outlet temperature thermistor 2 short or open detected Liquid pipe temperature thermistor Forecast of Cause : 1.

  • Page 127

    Indicate or Display: E. 84.1 Trouble shooting 49 Outdoor Unit : E. 84. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Current Sensor Error Filter LED Continuous Flash. Error Code : 84 Detective Actuators: Detective details:...

  • Page 128

    Indicate or Display: Trouble shooting 50 E. 86.1 Outdoor Unit : E. 86. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Discharge Pressure Sensor Error Filter LED Continuous Flash. Error Code : 86 Detective Actuators: Detective details:...

  • Page 129

    Indicate or Display: Trouble shooting 51 E. 86.3 Outdoor Unit : E. 86. 3 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Suction Pressure Sensor Error Filter LED Continuous Flash. Error Code : 86 Detective details: Detective Actuators:...

  • Page 130

    Indicate or Display: Trouble shooting 52 E. 86.4 Outdoor Unit : E. 86. 4 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, High Pressure Switch Error Filter LED Continuous Flash. Error Code : 86 Detective Actuators: Detective details:...

  • Page 131

    Indicate or Display: Trouble shooting 53 E. 93.1 Outdoor Unit : E. 93. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Inverter Compressor Start UP Error Filter LED Continuous Flash. Error Code : 93 Detective details:...

  • Page 132

    Indicate or Display: E. 94.1 Trouble shooting 54 Outdoor Unit : E. 94. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Trip Detection Filter LED Continuous Flash. Error Code : 94 Detective details: Detective Actuators: Inverter PCB...

  • Page 133

    Indicate or Display: E. 95.5 Trouble shooting 55 Outdoor Unit : E. 95. 5 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Compressor Motor Loss of Filter LED Continuous Flash. Synchronization Error Code : 95 Detective details:...

  • Page 134

    Indicate or Display: E. 97.1 (E 98.1) Trouble shooting 56 Outdoor Unit : E. 97. 1 ( FAN 1 ) , E. 98. 1 ( FAN 2 ) OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Unit Fan Motor 1(2) Filter LED Continuous Flash.

  • Page 135

    Indicate or Display: Trouble shooting 57 E. 97.4 ( E. 98.4) Outdoor Unit : E. 97. 4 E.98.4 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor unit Fan motor 1(2) Filter LED Continuous Flash.

  • Page 136

    Indicate or Display: E. 97.5 (E.98.5) Trouble shooting 58 Outdoor Unit : E. 97. 5 (FAN1), E. 98. 5 (FAN2) OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Unit Fan Motor 1 Temp. Abnormal Filter LED Continuous Flash.

  • Page 137

    Indicate or Display: Troubleshooting 59 E. 97.9 (E. 98.9) Outdoor Unit : E. 9 7. 9 ( E. 9 8. 9 ) OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor Unit Fan Motor Driver 1(2) Filter LED Continuous Flash.

  • Page 138

    Indicate or Display: E.9A.1( E.9A.2) Trouble shooting 60 Outdoor Unit : E. 9A. 1 ( EEV1), E. 9A. 2 ( EEV2) OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Coil (Expansion Valve 1 ) Error Filter LED Continuous Flash.

  • Page 139

    E.A1.1 Indicate or Display: Trouble shooting 61 Outdoor Unit : E. A1. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Discharge Tempreture Abnormal Filter LED Continuous Flash. Error Code : A1 Detective details: Detective Actuators: Discharge temperature thermistor...

  • Page 140

    Indicate or Display: Trouble shooting 62 E. A3. 1 Outdoor Unit : E. A3. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Compressor Tempreture Abnormal Filter LED Continuous Flash. Error Code : A3 Detective details: Detective Actuators:...

  • Page 141

    Indicate or Display: Trouble shooting 63 E. A4. 1 Outdoor Unit : E. A4. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, High Pressure Abnormal Filter LED Continuous Flash. Error Code : A4 Detective details: Detective Actuators:...

  • Page 142

    Indicate or Display: Trouble shooting 64 E. A4. 2 Outdoor Unit : E. A4. 2 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, High Pressure Protection 1 Filter LED Continuous Flash. Error Code : A4 Detective details:...

  • Page 143

    E. A5. 1 Indicate or Display: Trouble shooting 65 Outdoor Unit : E. A5. 1 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Low Pressure Abnormal Filter LED Continuous Flash. Error Code : A5 Detective details: Detective Actuators:...

  • Page 144

    E. AC. 4 Indicate or Display: Trouble shooting 66 Outdoor Unit : E. AC. 4 OUTDOOR UNIT Error Method: Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash, Outdoor unit Heat Sink Tempreture Filter LED Continuous Flash. Abnormal Error Code : AC...

  • Page 145: Trouble Shooting With No Error Code

    4-3-3 TROUBLE SHOOTING WITH NO ERROR CODE Trouble shooting 67 Forecast of Cause : Indoor Unit - No Power 1. Power Supply failure 2. Outside cause 3. Electrical Component defective Check Point 1 : Check Installation Condition Is not the breaker down? Check loose or removed connection cable.

  • Page 146

    Trouble shooting 68 Forecast of Cause : Outdoor Unit - No Power 1. Power Supply failure 2. Outside cause 3. Electrical Components defective Check Point 1 : Check Installation Condition Isnt the breaker down? Check loose or removed connection cable. >>If abnormal condition is found, correct it by referring to Installation Manual or Data &...

  • Page 147

    Trouble shooting 69 Forecast of Cause : 1. Setting/Connection failure 2. Outside cause No Operation (Power is ON) 3. Electrical Component defective Check Point 1 : Check indoor and outdoor installation condition Indoor Unit - Check incorrect wiring between Indoor Unit - Remote Control, or terminals between Indoor Units. Or, check if there is an open cable connection.

  • Page 148

    Trouble shooting 70 Forecast of Cause : No Cooling 1. Indoor Unit error 2. Outdoor Unit error 3. Effect by Surrounding environment 4. Connection Pipe / Connection Wire failure 5. Refrigeration cycle failure Check Point 1 : Check Indoor Unit Does Indoor Unit FAN run on HIGH FAN? Is Air Filter dirty? Is Heat Exchanger clogged?

  • Page 149: Abnormal Noise

    Trouble shooting 71 Forecast of Cause : 1. Abnormal installation (Indoor/Outdoor) 2. Fan failure(Indoor/Outdoor) Abnormal Noise 3. EEV failure (Indoor) 4. Compressor failure (Outdoor) Diagnosis method when Abnormal Noise is occurred Abnormal noise is coming from Indoor Unit Abnormal noise is coming from Outdoor Unit (Check and correct followings) (Check and correct followings) Is Main Unit installed in stable condition?

  • Page 150

    Trouble shooting 72 Forecast of Cause : Outdoor air unit - No Power 1. Power Supply failure 2. Outside cause 3. Electrical Component defective Check Point 1 : Power supply Is not the breaker down? Instant drop ----- Check if there is a large load electric apparatus in the same circuit. Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.

  • Page 151: Trouble Shooting For Optional Parts

    4-3-4 Trouble Shooting for Optional Parts 1. External Switch Controller (UTY-TEKX) Trouble shooting 73 Error Contents : Symptom : Power Supply Error No operation & LED does not light up. Condition : 1. No power supply. Voltage error between red and black terminals of External Switch Controller. (Normal voltage: 12V plus minus 10%) 2.

  • Page 152

    Trouble shooting 74 Error Contents : Symptom : The abnormality in connection LED repeats flashing 0.5sec ON & 0.5sec OFF. of remote controller cable Condition : Communication with Indoor unit has been cut off for longer than 1 minute. Cause 1 : Cause 4 : External noise Communication cable is defective or open.

  • Page 153

    Trouble shooting 75 Error Contents : Symptom : LED repeats flashing 0.5sec ON & 1.0sec OFF. Transmission Error Condition : Normal communication with Indoor unit has been suspended for longer than 1 minute. Cause 1 : DIP switch setting defective Cause 3 : Ext.

  • Page 154

    Trouble shooting 76 Error Contents : Symptom : LED is lighting but Switch (SW1 or SW2) does not operate. Switch Operation Error Condition : Switch input can not be detected. Cause 1 : Connection cable is defective or open. Check installation of connection cable. Check if connection cable is open.

  • Page 155

    Signal Amplifier (UTY-VSGXZ1 ) Troub le shooting 77 Error Contents : Symptom : No display Power Supply Error Details : Condition of occurrence : Normal power is not supplied. 7 segme nt indicator is defective. Release condition : Normal power is supplied. 7 segment indicator is normal. Cause 1 : Power supply cable installation is defective or open.

  • Page 156

    Signal Amplifier (UTY-VSGXZ1 ) Troubl e shooting 78 Symptom : Error Contents : Error code does not appear [ _ ] Communication Error Communication error occurs at connected equipment side. Details : Condition of occurrence : Network cable defective. External noise is applied. Overlapping of Signal Amplifier address setting.

  • Page 157

    Signal Amplifier (UTY-VSGXZ1 ) Troubl e shooting 79 Symptom : Error Contents : Error display [ 2 6 ] Address Setting Error No operation. Details : Condition of occurrence : Address is not set at Signal Amplifier. Release condition : Address setting mode is started up, and desired address has been set up. Cause 1 : External noise Cause 2 : Address is not set at Signal Amplifier.

  • Page 158

    Signal Amplifier (UTY-VSGXZ1 ) Trouble shooting 80 Symptom : Error Contents : Error display [ C 1 ] Main PCB Error No operation. Details : Condition of occurrence : Communication error between CPU and Network Driver IC Release condition : Communication is normal between CPU and Network Driver IC Cause 1 : External noise Upon pressing RESET button (SW7) or turning on power, proceed as follows.

  • Page 159

    Signal Amplifier (UTY-VSGXZ1 ) Trouble shooting 81 Symptom : Error Contents : Error display [ D9 (Flashing or Lighting) ] Communication Error B No operation. Details : Condition of occurrence : Communication error between CPU and Network Driver IC (CH_B side). Network Driver IC is defective.

  • Page 160

    Signal Amplifier (UTY-VSGXZ1 ) Trouble shooting 82 Symptom : Error Contents : Error display [ D14 (Flashing or Lighting) ] Communication Error A No operation. Details : Condition of occurrence : Communication error between CPU and Network Driver IC (CH_A side). Network Driver IC is defective.

  • Page 161

    Network Convertor (UTY-VGGXZ1) Trouble shooting 83 Error Contents : Symptom : No display Power Supply Error Details : Condition of occurrence : Normal power is not supplied. 7 segment indicator is defective. Release condition : Normal power is supplied. 7 segment indicator is normal. Cause 1 : Power supply cable installation is defective or open.

  • Page 162

    Network Convertor (UTY-VGGXZ1) Trouble shooting 84 Symptom : Error Contents : Error Code display [ C 1 ] Main PCB Error All the control items do not operate. Details : Condition of occurrence : Synchronization of Network Device was not normally done. Release condition : When the synchronization of the device is normally done.

  • Page 163

    Network Convertor (UTY-VGGXZ1) Group Remote controller Setting Trouble shooting 85 Error Contents : Symptom : Communication Error Error Code display [ 1 2 ] Control/Display from Group Remote is not available. with Group Remote Controller Details : Condition of occurrence : The communication between Group Remote and Network Convertor was not normally performed. Release condition : When the communication between Group Remote and Network Convertor resumes normal operation.

  • Page 164: Communication Error

    Network Convertor (UTY-VGGXZ1) Single Split system setting Trouble shooting 86 Error Contents : Symptom : Communication Error Error Code display [ 1 2 ] Control/Display from Standard Remote s not available. Other controls are left as they are. with Standard Remote Controller Details : Condition of occurrence : The communication between Standard Remote Controller and Network Convertor was not normally performed.

  • Page 165

    Network Convertor (UTY-VGGXZ1) Trouble shooting 87 Error Contents : Symptom : Error Code display [ 1 6 ] Peripheral device Communication abnormal All the control items do not operate. Details : Condition of occurrence : The communication between Indoor unit and Network Convertor was not performed normally. Release condition : When the communication with Indoor unit is resumed normally.

  • Page 166

    Network Convertor (UTY-VGGXZ1) Trouble shooting 88 Symptom : Error Contents : Error Code display [ C A ] Software Error All the control items do not operate. Other Controls are left they are. Details : Condition of occurrence : Micon program performed an abnormal control. Error of inside information of EEPROM.

  • Page 167

    Network Convertor (UTY-VGGXZ1) Trouble shooting 89 Symptom : Error Contents : Error Code display [ 2 6 ] Refrigerant circuit address setting error Details : Condition of occurrence : Indoor unit registration is 3 refrigerant circuits or more. Release condition : Indoor unit registration is 2 refrigerant circuits or less.

  • Page 168

    Group Remote Controller (UTY-CGGY / CGGG) Trouble shooting 90 Symptom : Error Contents : Error Code display [ C 4 ] Group remote controller hardware Error OPERATION LED is flashing. Details : Condition of occurrence : When EEPROM can not be written, or the control port does not operate. Release condition : Power is reset.

  • Page 169

    Group Remote Controller (UTY-CGGY / CGGG) Trouble shooting 91 Symptom : Error Contents : Error Code display [ 1 2 ] Remote controller Communication OPERATION LED is flashing. Error Details : Condition of occurrence : The valid signal has not been received from the convertor more than 90 seconds after the communication line became valid. Release condition : Valid signal is received from Convertor.

  • Page 170

    Trouble shooting 92 Group Remote Controller (UTY-CGGY / CGGG) Symptom : Error Contents : Error Code display [ 2 6 ] Address Setting Error OPERATION LED is flashing. Details : Condition of occurrence : 1. No Indoor unit is registered. Release condition : 1.

  • Page 171

    Trouble shooting 93 Group Remote Controller (UTY-CGGY / CGGG) Symptom : Error Contents : Error Code display [ 1 5 ] Scan Error OPERATION LED is flashing. Details : Condition of occurrence : 1. Registration started within 4 minutes after power ON 2.

  • Page 172

    Group Remote Controller (UTY-CGGY / CGGG) Trouble shooting 94 Symptom : Error Contents : Error Code display [ 1 4 ] Network communication Error OPERATION LED is flashing. Details : Condition of occurrence : When the signal is cut off for more than 10 minutes from the registered Indoor unit (not including Slave unit). Release condition : 1.

  • Page 173

    Trouble shooting 95 Error Contents : Symptom : Error Code display [ 1 5 ] Incompatible Indoor Unit is Connected Details : Condition of occurrence : When information was not obtained from indoor unit Release condition : When information was obtained from indoor unit or unit Cause 1 : Check remote controller master/slave setting.

  • Page 174

    Trouble shooting 96 Symptom : Error Contents : Thermo Sensor Error Thermostat Sensor display is flashing. Details : Condition of occurrence : Thermistor in remote controller is open or shorted. Release condition : Thermistor in remote controller is not open or shorted. Cause 1 : Remote controller internal thermistor trouble Replace remote controller.

  • Page 175

    Trouble shooting 97 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Operation lamp: No indication LED 1 (Green) : Flashing Fast Wireless LAN adapter Error Timer lamp : No indication LED 2 (Orange) : Flashing Fast ERROR CODE : [ No indication ] Detective Actuators: Detective details:...

  • Page 176

    Trouble shooting 98 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Communication Error between Operation lamp: 1 time Flash LED 1 (Green) : Flashing Fast Indoor unit and Timer lamp : 8 time Flash LED 2 (Orange) : Flashing Fast Wireless LAN Router ERROR CODE : [ 18 ]...

  • Page 177

    CONTINUATION Check Point 3-2 : Cheak the connection Check any loose or removed connection of between the Wireless LAN adapter PCB and Controller PCB >If there is abnormal condition, correct it. Check the connection condition on the Controller PCB >If there is loose connector, open cable or miswiring, correct it. Check Point 4 : Replace Wireless LAN adapter If Check Point 2,3 do not improve the symptom, replace Wireless LAN adapter and  ...

  • Page 178

    Trouble shooting 99 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Operation lamp: 1 times Flash, LED 1 (Green) : Flashing Fast Communication Error between Timer lamp : 8 times Flash LED 2 (Orange) : ON Indoor Unit and Wireless LAN adapter ERROR CODE : [ 18 ] Detective Actuators:...

  • Page 179

    Trouble shooting 100 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Communication Error between Operation lamp: No indication LED 1 (Green) : ON Wireless LAN Router and Timer lamp : No indication LED 2 (Orange) : Flashing Fast Wireless LAN adapter ERROR CODE : [ No indication ] Detective Actuators:...

  • Page 180

    Trouble shooting 101 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Operation lamp: 1 time Flash LED 1 (Green) : OFF Wireless LAN adapter Non-Energized Timer lamp : 8 time Flash LED 2 (Orange) : OFF ERROR CODE : [ 18 ] Detective Actuators: Detective details:...

  • Page 181

    Trouble shooting 102 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Operation lamp: No indication LED 1 (Green) : OFF Wireless LAN adapter Sleep mode Timer lamp : No indication LED 2 (Orange) : OFF ERROR CODE : [ No indication ] Detective Actuators: Detective details:...

  • Page 182: Service Parts Information

    4-4 SERVICE PARTS INFORMATION SERVICE PARTS INFORMATION 1 Compressor Diagnosis method of Compressor (If Outdoor Unit 7 segment LED displays Error, refer to Trouble shooting ) Abnormal noise Does not start up Stops soon after starting up Check power supply Check power supply voltage,open Is any Indoor Unit in operation? voltage,open fuse.

  • Page 183

    SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check Connection Check terminal connection of Compressor (loose or incorrect wiring) Check connection of Inverter PCB (Loose or incorrect wiring) Terminal cover opened (BLACK) (RED) (WHITE) Compressor Check Point 2 : Check Winding Resistance Check winding resistance of each terminal If the resistance value is 0 or infinite, replace Compressor.

  • Page 184: Main Pcb

    SERVICE PARTS INFORMATION 3 Main Filter PCB Check Fuse on the Main PCB Is Fuse open? Check Main PCB -1 Replace Main PCB (1) Connect all the connection wires between the Filter PCB - Main PCB disconnected at step (2). (2) Is there a short between L1, L3-N? Check Electric parts Replace Reactor...

  • Page 185

    SERVICE PARTS INFORMATION 4 Inverter PCB Filter Power PCB Check Diode Bridge Replace Diode Bridge (1) Check Circuit of Diode Bridge (After removing) Refer to the Service parts information 11 Check Wire unplugged and lose screw Filter PCB -> DB -> Reactor -> Power PCB -> Inverter PCB Filter PCB ->...

  • Page 186

    SERVICE PARTS INFORMATION 5 (Mounted on Inverter PCB) Check Point 1 Disconnect the connection wires between the Inverter PCB - ACTPM and Inverter PCB - Inverter Compressor. Set the tester to the "Resistance" mode, and measure the resistance between the following terminals. P - Terminals U / V / W N (TM482) - Terminals U / V / W Judge the result of...

  • Page 187

    SERVICE PARTS INFORMATION 6 Choke Coil / Reactor assy (INV) Reactor assy Check Point 1 : Appearance check No fissures, breaks, damage, etc. at the body and winding section, terminals section? Check Point 2 : Electric check Reactor assy (INV) Reactor assy Set the tester to the "Resistance"...

  • Page 188

    SERVICE PARTS INFORMATION 7 Terminal Check Point 1 : Appearance check No fissures, breaks, damage, etc. at the body and terminals section? Not clogged with foreign matter? Are there no abnormalities at threaded parts (Stripped threads, deformation, damage, etc.) ? Check Point 2 : Electric check No short between adjacent terminals? Conducts before and after same terminal?

  • Page 189

    SERVICE PARTS INFORMATION 8-1 Indoor Unit Electronic Expansion Valve (EEV) Check Point 1 : Check Connections Check Point 2 : Check Coil of EEV Remove connector, check each winding resistance of Coil. Check Connectors (Loose connector or open cable.) Slim duct, High static pressure duct, °...

  • Page 190

    SERVICE PARTS INFORMATION 8-2 Indoor Unit Electronic Expansion Valve (EEV) Check Point 1 : Check Connections Check Point 2 : Check Coil of EEV Remove connector, check each winding resistance of Coil. Check Connectors (Loose connector or open cable.) Cassette (AUXK018 - 030GLAH, Read wire Resistance value (20°C)

  • Page 191

    SERVICE PARTS INFORMATION 8-3 Indoor Unit Electronic Expansion Valve (EEV) Check Point 1 : Check Connections Check Point 2 : Check Coil of EEV Check Connectors (Loose connector or open cable.) Remove connector, check each winding resistance of Coil. Cassette (AUXK034 - 054GLAH) Read wire Resistance value (20°C)

  • Page 192

    SERVICE PARTS INFORMATION 9 Outdoor Unit Electronic Expansion Valve (EEV1) Check Point 1 : Check Connections Check connection of connector (CN116) (Loose connector or open cable) BLUE EEV1 ORANGE YELLOW WHITE BLUE EEV2 ORANGE YELLOW WHITE Check Point 2 : Check Coil of EEV1 Check Point 3 : Check Voltage from Controller PCB Remove connector, check each winding resistance of Coil.

  • Page 193

    SERVICE PARTS INFORMATION 10 Outdoor Unit Electronic Expansion Valve (EEV2) Check Point 1 : Check Connections Check connection of connector (CN117) (Loose connector or open cable) BLUE EEV1 ORANGE YELLOW WHITE BLUE EEV2 ORANGE YELLOW WHITE Check Point 2 : Check Coil of EEV2 Check Point 3 : Check Voltage from Controller PCB Remove connector, check each winding resistance of Coil.

  • Page 194

    SERVICE PARTS INFORMATION 11 3-Phase Diode Bridge Check Point 1 : Appearance check No fissures, breaks, damage, etc. at body and terminal section? Is the rear of the body coated with silicone grease? Are there no abnormalities at threaded parts (stripped threads, deformation, damage, etc.) ? Check Point 2 : Electric check In the 3-phase diode bridge single part state, set the tester to the "Resistance"...

  • Page 195

    SERVICE PARTS INFORMATION 12 4-WAY VALVE Check Point 1 : Check Circuit connection Check Point 2 : Check Solenoid Coil Check the connection of connector CN 105 Remove CN6 from PCB and check the resistance value of coil Resistance Value BLUE SOLENOID COIL 4WV 1.7K...

  • Page 196

    SERVICE PARTS INFORMATION 13 Indoor Unit AC Fan Motor Check Point : ARXC45GATH (High Static Pressure Duct Type) Check each winding resistance of the motor If Resistance value is abnormal, replace motor. BLUE (Low) Lead wire Resistance value VIOLET (Med) 6.84 White Red Thermal protector...

  • Page 197

    SERVICE PARTS INFORMATION 14-1 Indoor Unit Fan Motor <DC motor> When you approach this part, please cut off the power supply and wait for a while until DC voltage has been discharged. Check Point 1 : Check rotation of Fan Rotate the fan by hand when operation is off.

  • Page 198

    SERVICE PARTS INFORMATION 14-2 Indoor Unit Fan Motor <DC motor> (Lower fan motor of Compact Floor model) When you approach this part, please cut off the power supply and wait for a while until DC voltage has been discharged. Check Point 1 : Check rotation of Fan Rotate the fan by hand when operation is off.

  • Page 199

    SERVICE PARTS INFORMATION 15 Discharge Pressure Sensor Suction Pressure Sensor 1. Discharge Pressure Sensor Check Point : Check Voltage from Main PCB With the connector connected to the PCB, measure the voltage between CN118:2-3 of the Main PCB. Characteristics of pressure sensor PRESSURE WHITE SENSOR...

  • Page 200

    SERVICE PARTS INFORMATION 16 Pressure Switch Type of contact Pressure Characteristics of pressure switch Contact : Short Open 4.05MPa 3.2 0.15MPa Contact : Open Short SERVICE PARTS INFORMATION 17 Thermistor Check Point : Check Thermistor resistance value Remove connector and check Thermistor resistance value. Temperature Temperature Resistance Value [ k...

  • Page 201

    SERVICE PARTS INFORMATION 18 Outdoor Unit Fan Motor When you approach this part, please cut off the power supply and wait for a while until DC voltage has been discharged. Check Point 1 : Check rotation of Fan Rotate the fan by hand when operation is off. (Check if fan is caught, dropped off or locked motor) >>If Fan or Bearing is abnormal, replace it.

  • Page 202

    SERVICE INFORMATION Network communication Abnormal - Basic trouble shooting procedure - 1. Check Error code in one network segment separately, and check the Error code of (Outdoor unit, Indoor unit, Remotecontroller Service tool) < If the system has more than 2 Net work segments, disconnect the other Network segment.> 2.

  • Page 203

    Air Conditioning Unregistration Method If you replace the Wireless LAN adapter, it needs the unregster of air conditioner infomation on the App. Unregister method is as follows. Launch the mobile app(FGL air). FGL air Please long-push the registered “Dvice name” of Air Conditioner. Then will display the “Unregister”...

  • Page 204

    Air conditioner registration Paring Method Choose from the following modes to connect your Air conditioner to your Wireless LAN router. Note: Before starting this setting, wait for 60 seconds or more after the power supply is connected to the air conditioner (via breaker or plug). ...

  • Page 205: Appending Data

    5. APPENDING DATA...

  • Page 206: Refrigerant Circuit

    5-1 REFRIGERANT CIRCUIT MODELS : AJ  072LELAH, AJ  090LELAH, AJ  108LELAH Outdoor unit EEV2 FAN1 FAN2 SCHEX EEV1 HPSW1 TH10 CMP1 Indoor unit1 TH21 FAN21 TH23 EEV21 TH22 LIQUID LINE HEX21 GAS LINE Indoor unit2 TH21 FAN21 TH23 EEV21 TH22...

  • Page 207: Indoor Unit

    SYMBOL DESCRIPTION SYMBOL DESCRIPTION Outdoor unit MARK DESCRIPTION Compressor (Inverter type) Heat exchanger FAN 1 Fan 1 FAN 2 Fan 2 Accumulator Oil separator SCHEX Sub-cool heat exchanger High pressure sensor Low pressure sensor HPSW High pressure sensor switch 4-way valve EEV 1 Electric expansion valve 1 EEV 2 Electric expansion valve 2 SV 2...

  • Page 208

    5-2 WIRING DIAGRAM 5-2-1 Indoor Unit COMPACT CASSETTE TYPE MODELS : AUXB04GALH, AUXB07GA* H, AUXB09GA* H, AUXB12GA* H, AUXB14GA* H, AUXB18GA* H, AUXB24GA* H 05 - 03...

  • Page 209

    CASSETTE TYPE MODELS : AUXD18GA* H, AUXD24GA* H, AUXA18GALH, AUXA24GALH, AUXA30GA* H, AUXA36GA* H, AUXA45GA* H, AUXA54GA* H 05 - 04...

  • Page 210

    CASSETTE TYPE MODELS : AUXK018/ 024/ 030/ 034/ 036/ 045/ 054GLAH AUXM018/ 024/ 030GLAH 05-04...

  • Page 211

    COMPACT CASSETTE TYPE MODELS : AUXB04GBLH, AUXB04/ 07/ 09/ 12/ 14/ 18/ 24GALH AUXB07/ 09/ 12/ 14/ 18/ 24GATH 05-04...

  • Page 212

    LOW STATIC PRESSURE DUCT/ CONCEALED FLOOR TYPE MODEL : ARXB07GALH, ARXB09GALH, ARXB12GALH ARXB14GALH, ARXB18GALH 05 - 05...

  • Page 213

    SLIM DUCT / SLIM CONCEALED FLOOR TYPE MODELS : ARXD04GALH, ARXD07GA* H, ARXD09GA* H, ARXD12GA* H, ARXD14GA* H, ARXD18GA* H, ARXD24GA* H 05 - 06...

  • Page 214

    LOW STATIC PRESSURE DUCT TYPE MODEL : ARXB24GALH, ARXB30GALH, ARXB36GALH MODEL : ARXB45GALH 05 - 07...

  • Page 215

    MEDIUM STATIC PRESSURE DUCT TYPE MODELS : ARXA24GALH, ARXA30GALH, ARXA36GALH, ARXA45GALH MODELS : ARXA24GB* H, ARXA30GB* H, ARXA36GB* H, ARXA45GB* H 05 - 08...

  • Page 216

    HIGH STATIC PRESSURE DUCT TYPE MODELS : ARXC36GATH, ARXC45GATH, ARXC60GATH, MODELS : ARXC72GATH, ARXC90GATH 05 - 09...

  • Page 217

    MODEL : ARXC36GBTH MODELS : ARXC72GBTH, ARXC90GBTH 05 - 10...

  • Page 218

    COMPACT SLIM DUCT TYPE MODELS : ARXK04/ 07/ 09/ 12/ 14/ 18/ 24GCLH 05-10...

  • Page 219

    FLOOR / CEILING TYPE MODELS : AB* A12GATH, AB* A14GATH, AB* A18GATH, AB* A24GATH 05 - 11...

  • Page 220: Ceiling Type

    CEILING TYPE MODELS : AB* A30GATH, AB* A36GATH, AB* A45GATH, AB* A54GATH 05 - 12...

  • Page 221

    WALL MOUNTED TYPE (EEV external model) MODELS : AS* E04GACH, AS* E07GACH, AS* E09GACH, AS* E12GACH, AS* E14GACH 05 - 13...

  • Page 222

    WALL MOUNTED TYPE MODELS : AS* A04GACH, AS* A07GA* H, AS* A09GA* H, AS* A12GA* H, AS* A14GA* H 05 - 14...

  • Page 223

    MODELS : AS* A18GA* H, AS* A24GA* H, AS* A30GA* H 05 - 15...

  • Page 224

    COMPACT WALL MOUNTED TYPE (EEV internal) MODELS : ASYA004/ 007/ 009GTAH ASHA004/ 007/ 009GTAH 05-15...

  • Page 225

    COMPACT WALL MOUNTED TYPE (EEV external) MODELS : ASYE004/ 007/ 009GTAH ASHE004/ 007/ 009GTAH 05-15...

  • Page 226

    WALL MOUNTED TYPE MODELS : ASYA18/ 24/ 30GACH, ASHA18/ 24/ 30GACH ASYA18/ 24/ 30GBCH, ASHA18/ 24/ 30GBCH 05-15...

  • Page 227

    MODELS : ASYA030/ 034GTAH ASHA030/ 034GTAH 05-15...

  • Page 228

    COMPACT FLOOR TYPE (EEV internal) MODELS : AGYA004/ 007/ 009/ 012/ 014GCAH AGHA004/ 007/ 009/ 012/ 014GCAH 05-15...

  • Page 229

    COMPACT FLOOR TYPE (EEV external) MODELS : AGYE004/ 007/ 009/ 012/ 014GCAH AGHE004/ 007/ 009/ 012/ 014GCAH 05-15...

  • Page 230

    OUTDOOR AIR UNIT MODEL : ARXH054GTAH MODEL : ARXH072GTAH 05 - 16...

  • Page 231

    MODEL : ARXH096GTAH 05 - 17...

  • Page 232: Outdoor Unit

    5-2-2 Outdoor Unit MODELS: AJ 072LELAH, AJ090LELAH 05 - 18...

  • Page 233

    MODEL: AJ 108LELAH 05 - 19...

  • Page 234: Dx-kit

    5-2-3 DX-KIT REFRIGERANT CIRCUIT MODELS: UTP-VX30A, UTP-VX60A, UTP-VX90A TH25 EEV UNIT (UTP-VX**A) TH24 TH22 LIQUID LINE TH21 GAS LINE SYMBOL DESCRIPTION MARK DESCRIPTION Heat exchanger (Locally purchased) Fan (Locally purchased) Electric expansion valve TH21 Suction airflow temperature thermistor TH22 Heat exchanger (inlet) thermistor TH24 Heat exchanger (outlet) thermistor TH25...

  • Page 235

    TERMINAL BLOCK LAYOUT 3rd row Thermistor Thermistor ON/OFF Signal Error SIGNAL DEFROST THERMOSTAT FAN SIGNAL (GAS) (LIQUID) (OUT PUT) (OUT PUT) SIGNAL ON/OFF SIGNAL 2nd row Thermistor Thermistor ON/OFF Signal ERROR SIGNAL COOL/HEAT ANALOG (INLET AIR) (OUTLET AIR) (IN PUT) (IN PUT) SIGNAL SIGNAL...

  • Page 236: Characteristics Of Sensors

    5-3 CHARACTERISTICS OF SENSORS 5-3-1 Pressure senser 1. Discharge Pressure Sensor - Pressure Sensor (HIGH): CN118 - With the connector connected to the PCB, measure the voltage between CN118 : 2-3 of the Main PCB. 5.00 Pressure [MPa] Pressure 0.00 0.10 0.20 0.30...

  • Page 237: Thermistor Resistance

    5-3-2 Thermistor resistance Thermistor resistance value <Outdoor unit side> Temperature Resistance Value [ k ] [°C] Thermistor A Thermistor B Thermistor C - 20 105.4 - 10 27.8 58.2 21.0 44.0 168.6 16.1 33.6 129.8 12.4 25.9 100.9 20.2 79.1 15.8 62.6 12.5...

  • Page 238

    5-3-3 Saturation temperature and saturation pressure tables (°C / Mpa) (Pressure: Gauge pressure) Saturation pressure (Mpa) Saturation pressure (Mpa) Saturation temperature (°C) Saturation Temp. Temp. pressure (°C) (°C) (Mpa) Saturated liquid Saturated gas Saturated liquid Saturated gas Saturated liquid Saturated gas 1.275 1.270 0.1722...

  • Page 239: Temperature And Pressure Of Refrigerant (graph)

    5-3-4 Temperature and pressure of refrigerant (Graph) (4.5) (4.0) (3.5) (3.0) (2.5) (2.0) (1.5) (1.0) (0.5) (-30) (-20) (-10) ( 0 ) (10) (20) (30) (40) (50) (60) Saturated liquid temperature °F (°C) 05 - 25...

  • Page 240: Disassembly Process

    6. DISASSEMBLY PROCESS...

  • Page 241

    6. DISASSEMBLY PROCESS WARNING Before servicing the unit, turn the power supply switch OFF, Then, do not touch electric parts for 10 minutes due to the risk of electric shock. 1. Appearance 2. SERVICE PANEL removal Hooks (4 places) Screws (serrated) Remove the mounting screws.

  • Page 242

    3. MAIN PCB removal Spacers Caution Be careful about position of FAN motor connector when you exchange Main PCB or FAN motor by the repair. For Upper Fan motor CN104 DC FAN.1 For Lower Fan motor CN122 DC FAN. 2 *Painted CN. Earth screw Earth screw Spacers...

  • Page 243

    5. INVERTER PCB, FILTER PCB, DIODE BRIDGE and POWER PCB removal Screws Screws Remove the 6 mounting screws. Open the CONTROL BOX (MAIN). DIODE BRIDGE POWER PCB INVERTER PCB FITER PCB 5 -1. FILTER PCB removal Spacers Earth screw Remove the connectors and Earth screws. Remove the spacers.

  • Page 244

    5-2. INVERTER PCB removal Spacers Screws (For IPM) Screws (For Comp. Wire) Screw (To Power PCB) Remove the connectors and spacers. Remove the 4 mounting screws. For screws of IPM. Note the tightening torque at the installation. Temporary tightening : 0.2 to 0.4N m Final tightening : 0.98 to 1.47N m For screws of Comp.

  • Page 245

    5-4. POWER PCB removal Screws To DIODE BRIDGE To INVERTER PCB Remove the Wires. Remove the 2 mounting screws. Side view Hooks Remove the 2 Hooks. Remove the POWER PCB. 06-05...

  • Page 246

    6. FAN DRIVER PCB and INVERTER CT PCB removal ( For AJY108LELAH ) 6-1. FAN DRIVER PCB removal FAN DRIVER PCB Screws Spacers Remove the 2 mounting screws INVERTER CT PCB and spacers. (5 places) Note the tightening torque at the installation. Tightening torque is as follows.

  • Page 247

    7. PRESSURE SENSOR, SOLENOID COIL removal Pressure Sensor (High Pressure) Pressure Sensor (Low Pressure) Pressure Switch Solenoid Coil (4-way valve) 7-1. PRESSURE SENSOR removal CAUTION Wear gloves to prevent the frostbite, because a small amount of refrigerant leaks during work. Remove the PRESSURE SENSOR with wrench.

  • Page 248

    8. EEV COIL removal Turn the EEV COIL Remove the EEV coil by hand. Be careful so as not to bend the pipe. 9. THERMISTOR removal Cut the binders.(2 places) Remove the THERMISTOR SPRING. Remove the THERMISTOR. Careful not to disconnect the thermistor wire with a strong pull.

  • Page 249

    10. FAN MOTOR removal Screws Screws Remove the nut. And remove the PROPELLER FAN Remove the 5 mounting screws. Note at the installation. Remove the FAN GUARD Insert propeller Fan and Moter shaft reference D cutting position. by sliding upward. And the tightening torque at the installation.

  • Page 250

    11. TOP PANEL removal Screws Screws (with washer) (with washer) Screw (serrated) Remove the mounting screws. Remove the TOP PANEL. 12. REACTOR removal Screws DUCT C DUCT C POWER PCB Screws Need remove the POWER PCB. Remove the mounting Screws. Screws To DIODE BRIDGE To POWER PCB...

  • Page 251

    13. PIPE COVER FRONT removal screw screw (serrated) (with washer) Hooks Remove the mounting screws. Remove the PIPE COVER FRONT. 14. RIGHT PANEL removal Screws Screws Remove the mounting screws. Remove the RIGHT PANEL by sliding upward. 06-11...

  • Page 252: Compressor Removal

    15. COMPRESSOR removal Precautions for exchange of Compressor. Do not allow moisture or debris to get inside refrigerant pipes during work. Procedure for compressor removal. (1) Turn off power. (2) Remove the SERVICE PANEL and PIPE COVER FRONT. (3) Fully open the 3WAY VALVE(Gas) and 3WAY VALVE(Liquid). (4) Open the EEVs of Outdoor units and Indoor units by vaccuming mode.

  • Page 253

    Thermistor (Discharge) Thermistor (Discharge) Cut the binders. (2 place) Remove the Thermistor clip and Thermistor(Discharge). Thermistor (Comp.temp.) Thermistor (Comp.temp.) HEATER (CRANK CASE) HEATER (CRANK CASE) Hook Remove the Thermistor Remove the HEATER. (CRANK CASE) (Comp.temp) Remove the COMP BOLTs. (4 places) Discharge side Suction side Heat up the brazed part of...

  • Page 254

    16. Precautions for exchange of refrigerant-cycle-parts (1) During exchange the following parts shall be protected by wet rag and not make the allowable temperature or more. (2) Remove the heat insulation when there is the heat insulation near the welding place. Move and cool it when its detaching is difficult.

  • Page 255

    3-3-17, Suenaga, Takatsu-ku, Kawasaki 213-8502, Japan URL : http://www.fujitsu-general.com " " is a worldwide trademark of FUJITSU GENERAL LIMITED. * Microsoft®, Internet Explorer®, and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

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