Fujitsu ASG30LMTA Service Instruction
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Fujitsu ASG30LMTA Service Instruction

Fujitsu ASG30LMTA Service Instruction

Wall mounted type inverter
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SERVICE
INSTRUCTION
AMP Air Conditioning
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
INVERTER
Models
Indoor unit
AS*G30LMTA
AS*G36LMTA
#RSG30LMTA
#RSG36LMTA
www.ampair.co.uk | sales@ampair.co.uk
type
Outdoor unit
AO*G30LMTA
AO*G36LMTA
#ROG30LMTA
#ROG36LMTA

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Summary of Contents for Fujitsu ASG30LMTA

  • Page 1 SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AS*G30LMTA AO*G30LMTA AS*G36LMTA AO*G36LMTA #RSG30LMTA #ROG30LMTA #RSG36LMTA #ROG36LMTA AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...

  • Page 2: Table Of Contents

    CONTENTS 1. DESCRIPTION OF EACH CONTROL OPERATION 1. COOLING OPERATION....................01-01 2. HEATING OPERATION....................01-02 3. DRY OPERATION......................01-02 4. AUTO CHANGEOVER OPERATION................01-03 5. INDOOR FAN CONTROL....................01-05 6. OUTDOOR FAN CONTROL..................01-07 7. LOUVER CONTROL..................... 01-08 8. COMPRESSOR CONTROL..................01-09 9.

  • Page 3: Description Of Each Control Operation

    WALL MOUNTED type INVERTER 1 . DESCRIPTION OF EACH CONTROL OPERATION AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...

  • Page 4: Cooling Operation

    1. COOLING OPERATION 1-1 COOLING CAPACITY CONTROL A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor. * If the room temperature is 6.0°C higher than a set temperature, the compressor operation frequency will attain to maximum performance.

  • Page 5: Heating Operation

    2. HEATING OPERATION 2-1 HEATING CAPACITY CONTROL A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor. * If the room temperature is lower by 6.0°C than a set temperature, the compressor operation frequency will attain to maximum performance.

  • Page 6: Auto Changeover Operation

    4. AUTO CHANGEOVER OPERATION When the air conditioner is set to the Auto mode by remote controller, operation starts in the optimum mode from among the Heating, Cooling, and Monitoring mode. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set between 18°C and 30°C in 1.0°C steps.
  • Page 7 AUTO CHANGEOVER operation flow chart START Setting temperature Monitor mode Room temp. Ts+2 °C ? Room temp. Ts -2 °C ? Middle zone Auto change over is second or more? Operation mode before the monitor mode is cooling mode? Operation mode of HEATING OPERATION COOLING OPERATION outdoor unit : Cooling?

  • Page 8: Indoor Fan Control

    5. INDOOR FAN CONTROL 1. Fan speed ( Table4 : Indoor Fan Speed ) Speed (rpm) Operation mode Air flow mode Powerful 1520 Heating 1370 1260 1150 Quiet Cool air prevention S-Lo Cooling/ Fan Powerful 1520 1370 1150 Quiet S-Lo X zone: 780 J zone: 680 2.
  • Page 9 5. HEATING OPERATION Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature, as shown in Figure4. On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [HEAT] operation modes QUIET, LOW, MED, HIGH, as shown in Table4.

  • Page 10: Outdoor Fan Control

    6. OUTDOOR FAN CONTROL 1. Outdoor Fan Motor Following table shows the type of the outdoor fan motor. The control method is different between AC motor and DC motor. 2. Fan Speed ( Table 7 : Outdoor fan speed ) (rpm) Zone Cooling...

  • Page 11: Louver Control

    7. LOUVER CONTROL 1. VERTICAL LOUVER CONTROL (Function Range) Each time the button is pressed, the air direction range will change as follow: : During Heating/ Cooling/ Dry modes , , , The Remote Controller's display does not change. Use the air direction adjustments within the ranges shown above. The vertical airflow direction is set automatically as shown, in acc ordance with the type of operation selected.

  • Page 12: Compressor Control

    8. COMPRESSOR CONTROL 1. OPERATION FREQUENCY RANGE The operation frequency of the compressor is different based on the operation mode as shown in Table 10. (Table 10 : Compressor Operation Frequency Range) Cooling/ Dry /Heating 16rps 90rps 2. OPERATION FREQUENCY CONTROL AT START UP The compressor frequency soon after the start-up is controlled as shown in Fig.8.

  • Page 13: Timer Operation Control

    9. TIMER OPEARTION CONTROL 9-1 WIRELESS REMOTE CONTROLLER The table12 shows the available timer setting based on the product model. ( Table 12 : Timer Setting ) ON/OFF TIMER PROGRAM TIMER SLEEP TIMER WEEKLY TIMER 1. ON TIMER/ OFF TIMER OFF timer : When the clock reaches the set time, the air conditioner will be turned off.
  • Page 14 3. SLEEP TIMER If the sleep is set, the room temperature is monitored and the operation is stopped automatically. utomatically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is e operation is continued according to the changed setting of the sleep timer from that time ON.
  • Page 15 9-2 WIRED REMOTE CONTROLLER (OPTION) The table13 shows the available timer setting based on the product model. ( Table13 : Timer Setting ) ON TIMER / OFF TIMER WEEKLY TIMER DAY OFF ON TIMER / OFF TIMER Same to 9-1 1. ON TIMER / OFF TIMER and shown in those. WEEKLY TIMER This timer function can set operation times of the each day of the week.

  • Page 16: Electronic Expansion Valve Control

    10. ELECTRONIC EXPANSION VALVE CONTROL The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the Table14. The compressor frequency, the temperatures detected by the discharge temperature sensor, the indoor heat exchanger sensor, the outdoor heat exchanger sensor, and the outdoor temperature sensor.

  • Page 17: Four-Way Valve Extension Select

    13. FOUR-WAY VALVE EXTENSION SELECT At the time when the air conditioner is switched from the cooling mode to heating mode, the compressor is stopped, and the four-way valve is switched in 3 minutes later after the compressor stopped. 14. AUTO RESTART When the power was interrupted by a power failure, etc.

  • Page 18: Compressor Preheating

    17. COMPRESSOR PREHEATING When the outdoor heat exchanger temperature is lower than 0°C and the heating operation has been stopped for 0 minutes, power is applied to the compressor and the compressor is heated. (By heating the compressor, warm air is quickly discharged when operation is started.) When operation was started and when the outdoor heat exchanger temperature rises to 2°C or greater, preheating is ended.

  • Page 19: Defrost Operation Control

    20. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts when the outdoor heat exchanger temperature sensor (Tn) detects the temperature lower than the values shown in Table19. ( Table 19 : Condition of starting Defrost Operation ) Compressor integrating operation time time defrosting after starting operation...
  • Page 20 3. Defrost Flow Chart The defrosting shall proceed by the integrating operation time, outdoor temperature and outdoor heat exchanger temperature as follows. Heating operation start : Compressor ON (Not defrosted for 10 minutes) Integrating defrost 1st defrost 2nd and later defrost (Constant monitoring) Compressor Compressor...

  • Page 21: Off Defrost Operation Control

    21. OFF DEFROST OPEARTION CONTROL When operation stops in the [Heating operation] mode, if frost is adhered to the outdoor unit heat exchanger, the defrost operation will proceed automatically. In this time, if indoor unit operation lamp flashes slowly (7 sec ON / 2 sec OFF), the outdoor unit will allow the heat exchanger to defrost, and then stop.

  • Page 22: Various Protections

    22. VARIOUS PROTECTIONS 1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas temperature. When the discharge temperature becomes higher than Temperature , the compressor frequency is decreased 20rps, and it continues to decrease the frequency for 20rps every 120 seconds until the temperature becoms lower than Temperature .
  • Page 23 4. COOLING PRESSURE OVERRISE PROTECTION When the outdoor unit heat exchange sensor temperature rises to 67°C or greater the compressor is stopped and trouble display is performed. 5. HIGH TEMPERATURE AND HIGH PRESSURE RELEASE CONTROL ( HEATING MODE ) On heating mode, the compressor frequency is controlled as following based on the detection value of the indoor heat exchanger temperature sensor.

  • Page 24: Low Noise Operation

    23. LOW NOISE OPERATION The compressor speed and the outdoor unit fan speed are limited to reduce the operation noise by External Input. During the LOW NOISE OPERATION, "CURRENT OVERLOAD OPERATION", "ECONOMY OPERATION" and "PEAK CUT OPERATION" are effective, and the outdoor unit operates by lowest current of them. However, during the DEFROST OPERATION, the compressor operates by the speed for DEFROST OPERATION.

  • Page 25: Human Sensor (Energy Saving)

    24. HUMAN SENSOR (Energy Saving) • About the ENERGY SAVING Operation If no one enters the room for approximately 20 minutes, the set temperature will be automatically controlled. (When someone comes back into the room, the human sensor will detect this, and automatically revert to the original settings.) (Table 28) Operation details...

  • Page 26: Server Room Control

    26. SERVER ROOM CONTROL Operation: Cooling operation can be performed even in the low outdoor temperature and low humidity en- vironment. In addition, the following interlock operation is possible by connecting two indoor units with a cable. 1. System configuration Necessary items - 30, 36LMTA: 2 systems - UTY-XWNX: 2pcs...
  • Page 27 5. Precautions & Restrictions 1) While performing Server room control, the following function cannnot be used. • Operation modes other than cooling • Airflow modes other than HIGH • POWERFUL mode • 10 HEAT operation • ECONOMY operation • On/Off timer, Program time, and Sleep timer •...

  • Page 28: Operation Detail

    7. Operation detail 7-1 Alternative operation Controls the units operations by using the weekly timer of the primary unit. When the weekly timer is activated and the primary unit operation is turned off, the secondary unit starts operation simultaneously. Also, when the weekly timer is activated and the primary unit operation is turned on, the secondary unit stops operation simultaneously.
  • Page 29 8. Installation and Setting Step 1. Install the system one by one (Refer to the Installation manual) *Make sure that each system can operate in cooling by test operation. Step 2. Install Option UTY-XWNX to each indoor unit (Refer to 8-1) Install UTY-XWNX (Terminal with connector) Change DIP switch setting of Indoor units Main PCB (2WIRE 3WIRE)
  • Page 30 8-1-2. Install the terminal block (1) Attach the terminal block to the indoor unit firmly with 1 screw. (2) Place the wiring as per the figure. Place the wires from the terminal (Front view) Indoor unit main PCB (Rightside view) block under the other wires.

  • Page 31: Connecting The Cable

    8-1-3. Connecting the cable (1) Use the following cables (locally purchased) for this connection. Cable size Remarks Use shielded cable in 22AWG Sheathed PVC accordance with local cable Polar 3 core rules for cable. (2) Attach the cable to the terminal block. Position the wires so that the number on the terminal match.
  • Page 32 8-2 Function setting procedure Before activating server room control, assignment of primary unit and secondary unit is required Change the setting of function setting 96 as follows: 1. Turn on the power source of 2 indoor units. 2. Set one of the indoor unit as “Primary unit” (Setting value: 01) by function setting 96. (For contents of function setting 96, refer to the Technical manual) When performing the setting, operate the remote controller close to the signal receiver on the primary unit as possible so that the signal transmission is firmly received by the primary unit only.

  • Page 33: Trouble Shooting

    WALL MOUNTED type INVERTER 2 . TROUBLE SHOOTING AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...

  • Page 34: Error Display

    2-1 ERROR DISPLAY 2-1-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY Please refer the flashing pattern as follows. Indoor Unit : 30,36LMTA The OPERATION, TIMER, ECONOMY lamps operate as follows according to the error contents. Indoor Unit Display Wired Remote Trouble Controller Error Contents...
  • Page 35 Indoor Unit Display Wired Remote Trouble Controller shooting Error Contents Operation Timer Economy Display (Green) (Orange) (Green) Outdoor Thermistor Error 7 times Continuous 4 times 7 times Continuous Heat sink temp. sensor Error 7 times 8 times Continuous Current Sensor Error 4 times High Pressure Switch Error 8 times...

  • Page 36: Wired Remote Controller Display (Option)

    2-1-2 WIRED REMOTE CONTROLLER DISPLAY (OPTION) 3-Wire ERROR DETECTION If you use a wireless remote control, the lamp onthe photo detector unit will output error codes by way of blinking patterns. If you use a wired type remote control, error codes will appear on the remote control display. See the lamp blinking patterns and error codes in the table.

  • Page 37: Trouble Shooting With Error Code

    2-2 TROUBLE SHOOTING WITH ERROR CODE Indicate or Display: Trouble shooting 1 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 1 time Flash, Serial Communication Error ERROR CODE : [E : 11] Timer lamp : 1 time Flash (Serial Reverse Transfer Error) Detective Actuators: Detective details:...
  • Page 38 Indicate or Display: Trouble shooting 2 Indoor Unit : Wired Remote Controller : INDOOR UNIT Error Method: Operation lamp: 1 time Flash, Serial Communication Error ERROR CODE : [E : 11] Timer lamp : 1 time Flash (Serial Forward Transfer Error) Detective Actuators: Detective details: When the outdoor unit cannot properly receive the serial signal from...
  • Page 39 Indicate or Display: Trouble shooting 3 Wired Remote Controller : Indoor Unit : INDOOR UNIT Error Method: Operation lamp: 1 times Flash, Wired Remote Controller ERROR CODE : [E : 12] Timer lamp : 2 times Flash Communication Error Detective Actuators: Detective details: Indoor unit Controller PCB When the indoor unit cannot properly receive the signal from...
  • Page 40 Indicate or Display: Trouble shooting 4 INDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 1 times Flash, External communication error ERROR CODE : [E : 18] Timer lamp : 8 times Flash Detective Actuators: Detective details: External communication error After receiving a signal from the external I/O PCB, the same a signal has not been received for 15sec...
  • Page 41 Indicate or Display: Trouble shooting 5 Wired Remote Controller : OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 2 times Flash, ERROR CODE : [E : 23] Combination error Timer lamp : 3 times Flash Detective Actuators: Detective details: When the outdoor unit type is multi.
  • Page 42 Indicate or Display: Trouble shooting 6 INDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 2 times Flash, Address setting Error in Wired remote ERROR CODE : [E : 26] Timer lamp : 6 times Flash controller system Detective details: Detective Actuators:...
  • Page 43 Trouble shooting 7 Indicate or Display: INDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 2 times Flash, Connection unit number error (Indoor ERROR CODE : [E : 29] Timer lamp : 9 times Flash unit in Wired remote controller system) Detective details: Detective Actuators: When the number of connecting indoor units are out of specified rule.
  • Page 44 Indicate or Display: Trouble shooting 8 INDOOR UNIT Error Method: Wired Remote Controller : Indoor Unit : Operation lamp: 3 times Flash, Indoor Unit Model Information Error ERROR CODE : [E : 32] Timer lamp : 2 times Flash EEPROM Access Abnormal Detective details: Detective Actuators: When power is on and there is some below case.
  • Page 45 Trouble shooting 9 Indicate or Display: INDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 3 times Flash, Manual Auto Switch Error ERROR CODE : [E : 35] Timer lamp : 5 times Flash Detective Actuators: Detective details: Indoor Unit Controller PCB When the Manual Auto Switch becomes ON for consecutive 30 or...
  • Page 46 Trouble shooting 10 Indicate or Display: INDOOR UNIT Error Method: Wired Remote Controller : Indoor Unit : Operation lamp: 3 times Flash, Indoor unit communication circuit ERROR CODE : [E : 3A] Timer lamp : 10 times Flash (WRC) error Detective details: Detective Actuators: When the indoor unit(s) detects the configuration of RCG abnormal or...
  • Page 47 Indicate or Display: Trouble shooting 11 INDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 4 times Flash, ERROR CODE : [E : 41] Indoor Room Thermistor Error Timer lamp : 1 times Flash Detective details: Detective Actuators: Indoor unit Controller PCB Room temperature thermistor is open or short is detected always.
  • Page 48 Indicate or Display: Trouble shooting 12 Indoor Unit : Wired Remote Controller : INDOOR UNIT Error Method: Operation lamp: 4 times Flash, ERROR CODE : [E : 42] Indoor Heat Ex. Thermistor Error Timer lamp : 2 times Flash Detective Actuators: Detective details: Indoor unit Controller PCB Heat exchanger (MID) thermistor is open or short is detected always.
  • Page 49 Trouble shooting 13 Indicate or Display: INDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 4 times Flash, ERROR CODE : [E : 44] Human sensor error Timer lamp : 4 times Flash Detective Actuators: Detective details: Indoor unit Main PCB Detect the open condition of the sensor.
  • Page 50 Indicate or Display: Trouble shooting 14 INDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 5 times Flash, Indoor unit Fan Motor Error Timer lamp : 1 times Flash ERROR CODE : [E : 51] Detective Actuators: Detective details: When the condition that actual frequency of Indoor Fan is Indoor unit Controller PCB...
  • Page 51 Indicate or Display: Trouble shooting 15 INDOOR UNIT Error Method: Wired Remote Controller : Indoor Unit : Operation lamp: 5 times Flash, Drain pump error ERROR CODE : [E : 53] Timer lamp : 3 times Flash Detective details: Detective Actuators: Indoor Unit Controller PCB Circuit When Float switch is ON for more than 3 minutes.
  • Page 52 Indicate or Display: Trouble shooting 16 OUTDOOR UNIT Error Method: Wired Remote Controller : Indoor Unit : Operation lamp: 6 times Flash, Outdoor unit main PCB model ERROR CODE : [E : 62] Timer lamp : 2 times Flash information error Detective Actuators: Detective details: Access to EEPROM failed due to some cause after outdoor unit started.
  • Page 53 Indicate or Display: Trouble shooting 17 OUTDOOR UNIT Error Method: Wired Remote Controller : Indoor Unit : Operation lamp: 6 times Flash, Inverter Error ERROR CODE : [E : 63] Timer lamp : 3 times Flash Detective Actuators: Detective details: Inverter PCB Error information received from Inverter PCB Forecast of Cause :...
  • Page 54 Indicate or Display: Trouble shooting 18 OUTDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 6 times Flash, Active filter voltage error ERROR CODE : [E : 64] Timer lamp : 4 times Flash Detective Actuators: Detective details: Outdoor unit Main PCB When inverter input DC voltage is higher than 430V or...
  • Page 55 Indicate or Display: Trouble shooting 19 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 6 times Flash, ERROR CODE : [E : 65] IPM Error Timer lamp : 5 times Flash Detective details: Detective Actuators: When more than normal operating current to IPM in Main PCB flows, Outdoor unit Main PCB the compressor stops.
  • Page 56 Indicate or Display: Trouble shooting 20 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 7 times Flash, ERROR CODE : [E : 71] Discharge Thermistor Error Timer lamp : 1 times Flash Detective Actuators: Detective details: Outdoor unit Main PCB When Discharge pipe temperature thermistor open or short-circuit Discharge pipe temperature thermistor...
  • Page 57 Indicate or Display: Trouble shooting 21 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 7 times Flash, ERROR CODE : [E : 72] Compressor Thermistor Error Timer lamp : 2 times Flash Detective Actuators: Detective details: Outdoor unit Main PCB When Compressor temperature thermistor open or short-circuit Compressor temperature thermistor...
  • Page 58 Trouble shooting 22 Indicate or Display: OUTDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 7 times Flash, Heat Ex. Liquid Outlet Thermistor Error ERROR CODE : [E : 73] Timer lamp : 3 times Flash Detective Actuators: Detective details: Outdoor unit Main PCB...
  • Page 59 Indicate or Display: Trouble shooting 23 Wired Remote Controller : Indoor Unit : OUTDOOR UNIT Error Method: Operation lamp: 7 times Flash, ERROR CODE : [E : 74] Outdoor Thermistor Error Timer lamp : 4 times Flash Detective Actuators: Detective details: Outdoor unit Main PCB When Outdoor temperature thermistor open or short-circuit Outdoor temperature thermistor...
  • Page 60 Indicate or Display: Trouble shooting 24 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 7 times Flash, ERROR CODE : [E : 77] Heat Sink Thermistor Error Timer lamp : 7 times Flash Detective Actuators: Detective details: Heat sink temperature thermistor (Built-in IPM) open/short detected Inverter PCB...
  • Page 61 Indicate or Display: Trouble shooting 25 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 8 times Flash, ERROR CODE : [E : 84] Current Sensor Error Timer lamp : 4 times Flash Detective Actuators: Detective details: When Input Current Sensor has detected 0A, while Inverter Compressor is Outdoor unit Main PCB operating at higher than 56rps,...
  • Page 62 Indicate or Display: Trouble shooting 26 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 8 times Flash, ERROR CODE : [E : 86] High Pressure Switch Error Timer lamp : 6 times Flash Detective Actuators: Detective details: When pressure switch open is detected in 10 seconds Outdoor unit Main PCB...
  • Page 63 Indicate or Display: Trouble shooting 27 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 9 times Flash, ERROR CODE : [E : 94] Over Current Error Timer lamp : 4 times Flash Detective details: Detective Actuators: "Protection stop by overcurrent generation after inverter compressor start Outdoor unit Main PCB processing completed'' generated consecutively 10 times.
  • Page 64 Indicate or Display: Trouble shooting 28 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 9 times Flash, ERROR CODE : [E : 95] Compressor Control Error Timer lamp : 5 times Flash Detective details: Detective Actuators: While running the compressor, if the detected rotor location is out of Outdoor unit Main PCB phase with actual rotor location more than 90°,...
  • Page 65 Indicate or Display: Trouble shooting 29 Wired Remote Controller : Indoor Unit : OUTDOOR UNIT Error Method: Operation lamp: 9 times Flash, ERROR CODE : [E : 97] Timer lamp : 7 times Flash Outdoor Unit Fan Motor Error Detective Actuators: Detective details: When outdoor fan rotation speed is less than 100rpm in 20 seconds Outdoor unit Main PCB...
  • Page 66 Indicate or Display: Trouble shooting 30 OUTDOOR UNIT Error Method: Indoor Unit : Wired Remote Controller : Operation lamp: 9 times Flash, 4-Way Valve Error ERROR CODE : [E : 99] Timer lamp : 9 times Flash Detective Actuators: Detective details: Indoor unit Controller PCB When the indoor heat exchanger temperature is compared with the room temperature, and either following condition is detected...
  • Page 67 Indicate or Display: Trouble shooting 31 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 10 times Flash, Discharge Temp. Error ERROR CODE : [E : A1] Timer lamp : 1 times Flash Detective details: Detective Actuators: "Protection stop by "discharge temperature 110degC during compressor Discharge temperature thermistor...
  • Page 68 Indicate or Display: Trouble shooting 32 Indoor Unit : Wired Remote Controller : OUTDOOR UNIT Error Method: Operation lamp: 10 times Flash, Compressor Temp. Error ERROR CODE : [E : A3] Timer lamp : 3 times Flash Detective details: Detective Actuators: Compressor temperature thermistor "Protection stop by Outdoor unit Main PCB...

  • Page 69: Trouble Shooting With No Error Code

    2-3 TROUBLE SHOOTING WITH NO ERROR CODE Forecast of Cause: Trouble shooting 34 1. Power Supply failure 2. External cause Indoor Unit - No Power 3. Electrical Components defective Check Point 1 : Check Installation Condition Isn’t the breaker down? Check loose or removed connection cable.
  • Page 70 Forecast of Cause: Trouble shooting 35 1. Power Supply failure 2. External cause Outdoor Unit - No Power 3. Electrical Components defective Check Point 1 : Check Installation Condition Isn’t the breaker down? Check loose or removed connection cable. >>If abnormal condition is found, correct it by referring to Installation Manual or Data &...
  • Page 71 Forecast of Cause: Trouble shooting 36 1. Setting/ Connection failure 2. External 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, check if there is an open cable connection.
  • Page 72 Forecast of Cause: Trouble shooting 37 1. Indoor Unit error 2. Outdoor Unit error No Cooling / No Heating 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 73 Forecast of Cause : Trouble shooting 38 1. Abnormal installation (Indoor/ Outdoor) Abnormal Noise 2. Fan failure (Indoor/ Outdoor) 3. 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 74: Service Parts Information

    2-4 SERVICE PARTS INFORMATION SERVICE PARTS INFORMATION 1 Compressor Diagnosis method of Compressor ( If Outdoor Unit LED displays Error, refer to Trouble shooting ) Abnormal noise Stops soon after starting up Does not start up Is there open or loose connection Is there open or loose connection Check if vibration noise by cable?
  • Page 75 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check connection Check terminal connection of Compressor Check connection of Transisitor PCB(IPM). (Loose or incorrect wiring) (Loose or incorrect wiring) W(C)(T) V(S) (BLACK) (WHITE) Transistor PCB (IPM) TM305 TM304 TM303 Transistor PCB (IPM) BLACK WHITE...
  • Page 76 SERVICE PARTS INFORMATION 3 Outdoor unit Electronic Expansion Valve ( EEV ) Check Point 1 : Check Connections Check connection of connector ( Loose connector or open cable ) EXPANSION VALVE COIL BLUE ORANGE CN700 YELLOW WHITE Check Point 2 : Check Coil of EEV Check Point 3 : Check Voltage from Main PCB.
  • Page 77 SERVICE PARTS INFORMATION 4 Indoor unit fan motor 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. Check Point 2 : Check resistance of Indoor Fan Motor Refer to below.
  • Page 78 SERVICE PARTS INFORMATION 6 Active filter module Check Point 1 : Check Open or Short-circuit and Diode (D1) Remove connector, check the open or short-circuit and the diode in the module Check the open or short-circuit Table.1 Each type standard value LOT No.
  • Page 79 3-3-17,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan Oct. 2015 Printed in Japan AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
  • Page 80 SERVICE PARTS INFORMATION 7 Mounted on Transistor PCB) Check Point 1 Disconnect the connection wires between the Transistor PCB - Capacitor PCB and Transistor PCB - Inverter Compressor. Set the tester to the "Resistance" mode, and measure the resistance between the following terminals. TM301 (P) - TM305(U) / TM304(V) / TM303(W) TM302 (N) - TM305(U) / TM304(V) / TM303(W) Judge the result of...

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