Fujitsu ASU30RLE Service Instruction
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Fujitsu ASU30RLE Service Instruction

Split type room air conditioner
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SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
type
INVERTER
SERVICE
INSTRUCTION
Models
Indoor unit
Outdoor unit
AOU30RLXEH
ASU30RLE
R410A

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Summary of Contents for Fujitsu ASU30RLE

  • Page 1 SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTED type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AOU30RLXEH ASU30RLE R410A...

  • Page 2: Table Of Contents

    CONTENTS 1. DESCRIPTION OF EACH CONTROL OPERATION 1-1 COOLING OPERATION.................... 01-01 1-2 HEATING OPERATION..................... 01-02 1-3 DRY OPERATION..................... 01-02 1-4 AUTO CHANGEOVER OPERATION................ 01-03 1-5 INDOOR FAN CONTROL..................01-04 1-6 OUTDOOR FAN CONTROL..................01-07 1-7 LOUVER CONTROL....................01-08 1-8 COMPRESSOR CONTROL..................01-09 1-9 TIMER OPERATION CONTROL................
  • Page 3 2. TROUBLE SHOOTING 2-1 ERROR DISPLAY ...................... 02-01 02-01 2-1-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY..... 2-1-2 WIRED REMOTE CONTROLLER DISPLAY............02-02 2-1-3 OUTDOOR UNIT DISPLAY................02-03 2-2 TROUBLE SHOOTING WITH ERROR CODE ............02-04 2-3 TROUBLE SHOOTING WITH NO ERROR CODE ............ 02-37 2-4 SERVICE PARTS INFORMATION ................

  • Page 4: Description Of Each Control Operation

    R410A WALL MOUNTED type INVERTER 1 . DESCRIPTION OF EACH CONTROL OPERATION...

  • Page 5: Cooling Operation

    1-1 COOLING OPERATION A sensor (room temperature thermistor) built in the indoor unit 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 7.0°F(3.5°C) higher than a set temperature, the compressor operation frequency will attain to maximum frequency.

  • Page 6: Heating Operation

    1-2. HEATING OPERATION A sensor (room temperature thermistor) built in the indoor unit 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 9°F(4.5°C) than a set temperature, the compressor operation frequency will attain to maximum frequency.

  • Page 7: Auto Changeover Operation

    1-4. 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, Dry and Monitoring mode. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set between 64°F (18°C) and 86°F (30°C) in 2°F (1°C) steps.

  • Page 8: Indoor Fan Control

    1-5. INDOOR FAN CONTROL 1. Fan speed ( Table 5 : Indoor fan speed ) Operation mode Air flow mode Speed (rpm) Powerful 1520 Heating 1370 1260 1150 Quiet Cool air prevention S-Lo Cooling / Powerful 1520 1370 1150 Quiet X : 780 J : 680 2.
  • Page 9 4. HEATING OPERATION Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature, as shown in Fig.6. 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 Table 5.
  • Page 10 (SEC) ( Table 6 : Indoor fan speed ) Cooling X zone J zone Y zone ASU30RLE 780rpm 680rpm 540rpm 780rpm 9. FAN CONTROL FOR ENERGY SAVING When the air flow setting except AUTO mode, the indoor fan motor will run as shown in Fig. 9.

  • Page 11: Outdoor Fan Control

    1-6. OUTDOOR FAN CONTROL 1. Fan Speed Following table shows the fan speed of the outdoor unit. ( Table 7 : Fan speed of the outdoor unit ) Cooling 850/ 780/ 520/ 480/ 400/ 350/ 280 rpm Upper fan AOU30RLXEH 800/ 750/ 520/ 350/ 280/ 0 rpm Lower fan Heating...

  • Page 12: Louver Control

    1-7. LOUVER CONTROL 1. VERTICAL LOUVER CONTROL (Function Range) Each time the button is pressed, the air direction range will change as follow: ( Fig. 10 : Vertical air direction range ) ① ② ③ ④ ⑤ ⑥ The Remote Controller's display does not change. ①...

  • Page 13: Compressor Control

    1-8. 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 Heating 15rps 18rps 55rps 80rps AOU30RLXEH 2.

  • Page 14: Timer Operation Control

    ( Table 11 : Timer setting ) ON / OFF TIMER PROGRAM TIMER SLEEP TIMER WEEKLY TIMER ASU30RLE 1. ON / OFF TIMER OFF timer : When the clock reaches the set time, the air conditioner will be turned off.
  • Page 15 3. SLEEP TIMER If the sleep timer is set, the room temperature is monitored and the operation is stopped automatically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time ON. In the COOLING operation mode When the sleep timer is set, the setting temperature is increased 2°F (1°C)
  • Page 16 1-9-2 Wired Remote Controller AR-WEC1E(2 wire remote controller) ON / TIMER OFF / TIMER WEEKLY TIMER *3 wire remote controller can be connected If 3 wire remote controller is connected, set the DIP-SW on the controller PCB Refer to the installation manual for detailed. If used in combination with wireless and wired remote controller, the following function is limited.
  • Page 17 2-2. DAY OFF setting The DAY OFF setting is only available for days for which weekly settings already exist. If the operating time carries over to the next day (during a next day setting), the effective DAY OFF range will be set as shown below. Normal DAY OFF Operation mode...

  • Page 18: Electronic Expansion Valve Control

    1-10. 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 following values. 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. ( Table 13 : The pulse range of the electronic expansion valve control ) Operation Pulse range...

  • Page 19: Prevent To Restart For 3 Minutes

    1-12. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST ) The compressor won't enter operation status for 3 minutes after the compressor is stopped, even if any operation is given. 1-13. 4-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 4-way valve is switched in 3 minutes later after the compressor stopped.

  • Page 20: Compressor Preheating

    1-16. COMPRESSOR PREHEATING When the outdoor temperature is lower than 68°F (20°C) and the all operation mode has been stopped for 30 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 temperature rises to 78.8°F (26°C) or greater, preheating is ended.

  • Page 21: Low Noise Operation

    1-20. COMPRSSOR STOP CONTROL When the detection value of outdoor temperature sensor is lower than temperature in the table below, the compressor is stopped. ( Table 19 : Operation temperature of compressor stop control ) Temperature Cooling Heating Operation temperature -13°F (-25°C) -4°F (-20°C) Maximum frequency...

  • Page 22: Human Sensor Operation

    1-22. HUMAN SENSOR OPERATION The HUMAN SENSOR functions by pressing SENSOR button on the remote controller. When the sensor detects that there is no one in the room for 20 minutes or more, it automatically changes the operation as below settings. When someone comes back into the room, the human sensor will detect this, and automatically revert to the original settings.

  • Page 23: Forced Cooling Operation

    1-25. FORCED COOLING OPERATION ( When using the Wireless RC ) The FORCED COOLING OPERATION starts up when MANUAL / AUTO button is pressed more than 10 seconds. During the FORCED COOLING OPERATION, it keeps operation regardless of detection value of room temperature sensor. Operation LED and Timer LED blinks simultaneously while the unit is on the FORCED COOLING OPERATION.

  • Page 24: Pump Down

    1-29. PUMP DOWN 16.2. Pump down procedure WARNING (1) Check the 3-way valves (both the liquid side and gas side) are opened. Never touch electrical components such as the terminal blocks except the button on (2) Turn the power on. the display board.

  • Page 25: Defrost Operation Control

    1-30. DEFROST OPEARTION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts as shown in the following Table 23, 24, 25 and 26. ( Table 23 : Condition of 1st defrost operation ) Compressor integrating operation time Compressor integrating operation time 1st defrost Less than 17 minutes...
  • Page 26 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 Integrating defrost ( OFF count defrost ) Compressor...

  • Page 27: Off Defrost Operation Contro

    1-31. 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 28: Various Protections

    1-32. VARIOUS PROTECTIONS 1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENTION CONTROL The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas temperature. When the discharge temperature becomes higher than TemperatureⅠ,the compressor frequency is decreased 10rps, and it continues to decrease the frequency for 10rps every 120 seconds until the temperature becomes lower than TemperatureⅠ.
  • Page 29 3. ANTIFREEZING CONTROL (Cooling and Dry mode) The compressor frequency is decrease on cooling & dry mode when the indoor heat exchanger temperature sensor detects the temperature lower than Temperature . Then, the anti-freezing control is released when it becomes higher than Temperature . ( Table 31 : Anti-freezing protection operation / Release temperature ) Outdoor temperature Temperature...
  • Page 30 5. LOW PRESSURE PROTECTION CONTROL (For Cooling mode) 5-1. Low Pressure Protection 1 <After the compressor start-up and 1 minute has passed> (a).The detected value of pressure sensor is 17.4 psi(0.02MPaG) or less, continues for 5 minutes, the compressor is stopped. (b).

  • Page 31: Description Of Display Unit

    1-33. DESCRIPTION OF DISPLAY UNIT 1-33-1 Layout of Display Unit Various settings can be adjusted by changing Push switches on the board of the outdoor unit. • ( Excerpt from the "INSTALATION MANUAL" ) LED DISPLAY           Inverter cover PUSH SWITCH Display lamp...

  • Page 32: Display Mode

    1-33-2 Display mode 1-00. ERROR HISTORY MODE In this mode, the "Operation Condition" and "Error Code" can be displayed by Push Switch on outdoor unit PCB • : Light OFF : Light ON : Blinking 1 : 1 Time Blinking ( Table 32 : Procedure for present value ) Power Error...
  • Page 33 : Light OFF : Light ON 1 : 1 Time Blinking ( Table 34 : Detail of LED display data ) Power Error Item No, Display Item Mode Compressor 1 ~ 15 Frequency 16 ~ 30 ( 0 ~ 95rps ) 31 ~ 45 46 ~ 60 61 ~ 75...
  • Page 34 : Light OFF : Light ON 1 : 1 Time Blinking Power Error Item No, Display Item Mode ~ -15 Outdoor Air -15 ~ -5 Temperature -5 ~ 5 ° ( -22 ~ 158 5 ~ 15 ° ( -30 ~ 70 15 ~ 25 25 ~ 35 35 ~ 45...
  • Page 35 1-33-3 Error history mode 1-00. ERROR HISTORY MODE In this mode, the history of abnormality that occurred in the past can be confirmed. • n : n Times Blinking ( Table : 35 Procedure for history mode ) : Light OFF : Light ON : Blinking 2 : 2 Times Blinking...
  • Page 36 R410A WALL MOUNTED type INVERTER 2 . TROUBLE SHOOTING...
  • Page 37 2-1 ERROR DISPLAY 2-1-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY 1. ERROR DISPLAY Please refer the blinking pattern as follows. The Operation, Timer, Economy lamps operate as follows according to the error contents. Indoor Unit Display Wired Remote Trouble Controller Error Contents Economy...
  • Page 38 2-1-2 WIRED REMOTE CONTROLLER DISPLAY AR-WEC1E (2 wire remote controller) 1. Check the error 1. If an error occurs, an error icon appears on the “Monitor mode screen”. Touch the [Status] on the “Monitor mode screen”.The “Status” screen is displayed. 2.
  • Page 39 2-1-3 OUTDOOR UNIT DISPLAY You can determine the operating status by the lighting up and blinking of the LED lamp. Display when an error occurs. PUMP PEAK POWER/ DOWN NOISE ERROR MODE LED display part (L1) (L2) (L3) (L4) (L5) (L6) ●...
  • Page 40 2-2 TROUBLE SHOOTING WITH ERROR CODE Trouble shooting 1 Indicate of Display: OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 1 times Flash, Serial Communication Error Outdoor unit : No indication Timer lamp : 1 times Flash (Serial Reverse Transfer Error) ERROR CODE : [E : 11] Detective Actuators: Detective details:...
  • Page 41 Trouble shooting 2 Indicate of Display: Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 1 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) Serial Communication Error Timer lamp : 1 times Flash (Serial Forward Transfer Error) ERROR CODE : [E : 11] n : n times blinking...
  • Page 42 Trouble shooting 3 Indicate of Display: Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 1 times Flash, (L1) (L2) (L3) (L4) (L5) (L6) MODE Wired Remote Controller Timer lamp : 2 times Flash Communication Error ERROR CODE : [E : 12] : Light OFF...
  • Page 43 Indicate or Display: Trouble shooting 4 Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 1 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) External communication error Timer lamp : 8 times Flash ERROR CODE : [E : 18] : Light OFF : Light ON...
  • Page 44 Indicate or Display: Trouble shooting 5 Indoor Unit : OUTDOOR UNIT Error Method: Operation lamp: 2 times Flash, Outdoor unit : No indication Combination Error Timer lamp : 3 times Flash ERROR CODE : [E : 23] Detective Actuators: Detective details: 1.
  • Page 45 Indicate or Display: Outdoor unit : Trouble shooting 6 Indoor Unit : OUTDOOR UNIT Error Method: PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 2 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) Address setting Error in Wired remote Timer lamp : 6 times Flash controller system...
  • Page 46 Indicate or Display: Trouble shooting 7 Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 2 times Flash, ERROR MODE (L1) (L2) (L3) (L4) (L5) (L6) Connection unit number error (Indoor Timer lamp : 9 times Flash unit in Wired remote controller system) ERROR CODE : [E : 29]...
  • Page 47 Trouble shooting 8 Indicate of Display: Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER Operation lamp: 3 times Flash, DOWN NOISE ERROR (L1) (L2) (L3) (L4) (L5) (L6) Indoor Unit PCB Model MODE Timer lamp : 2 times Flash Information Error ERROR CODE : [E : 32]...
  • Page 48 Trouble shooting 9 Indicate of Display: Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 3 times Flash, Manual Auto Switch Error MODE (L1) (L2) (L3) (L4) (L5) (L6) Timer lamp : 5 times Flash ERROR CODE : [E : 35] : Light OFF...
  • Page 49 Outdoor unit : Indicate or Display: Trouble shooting 10 Indoor Unit PUMP PEAK INDOOR UNIT Error Method: POWER DOWN NOISE ERROR Operation lamp: 3 timesFlash, MODE (L1) (L2) (L3) (L4) (L5) (L6) Indoor unit communication circuit Timer lamp : 10times Flash (WRC) error Error Code : 3 A...
  • Page 50 Trouble shooting 11 Indicate of Display: Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 4 times Flash, ERROR MODE (L1) (L2) (L3) (L4) (L5) (L6) Indoor Room Thermistor Error Timer lamp : 1 times Flash ERROR CODE : [E : 41] : Light OFF...
  • Page 51 Trouble shooting 12 Indicate of Display: Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER Operation lamp: 4 times Flash, DOWN NOISE ERROR Indoor Heat Ex. Thermistor Error (L1) (L2) (L3) (L4) (L5) (L6) MODE Timer lamp : 2 times Flash ERROR CODE : [E : 42] : Light OFF...
  • Page 52 Trouble shooting 13 Indicate of Display: Outdoor unit : INDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER Operation lamp: 5 times Flash, DOWN NOISE ERROR Indoor Unit Fan Motor Error MODE (L1) (L2) (L3) (L4) (L5) (L6) Timer lamp : 1 times Flash ERROR CODE : [E : 51] : Light OFF...
  • Page 53 Trouble shooting 14 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 6 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) Outdoot Unit Main PCB Model Timer lamp : 2 times Flash Information Error ERROR CODE : [E : 62]...
  • Page 54 Trouble shooting 15 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER Operation lamp: 6 times Flash, DOWN NOISE ERROR Inverter Error (L1) (L2) (L3) (L4) (L5) (L6) MODE Timer lamp : 3 times Flash ERROR CODE : [E : 63] : Light OFF : Light ON...
  • Page 55 Trouble shooting 16 Indicate of Display: OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 6 times Flash, Active Filter Error Outdoor unit : No indication Timer lamp : 4 times Flash ERROR CODE : [E : 64] Detective Actuators: Detective details: ① When inverter input DC voltage is higher than 430V or lower than 110V.
  • Page 56 Trouble shooting 17 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 6 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) IPM Error Timer lamp : 5 times Flash ERROR CODE : [E : 65] : Light OFF : Light ON...
  • Page 57 Trouble shooting 18 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 7 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Discharge Thermistor Error MODE Timer lamp : 1 times Flash ERROR CODE : [E : 71] : Light OFF : Light ON...
  • Page 58 Trouble shooting 19 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 7 times Flash, (L1) (L2) (L3) (L4) (L5) (L6) MODE Compressor Thermistor Error Timer lamp : 2 times Flash ERROR CODE : [E : 72] : Light OFF : Light ON...
  • Page 59 Trouble shooting 20 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 7 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Heat Ex. Middle Temp. MODE Timer lamp : 3 times Flash Thernistor Error ERROR CODE : [E : 73]...
  • Page 60 Trouble shooting 21 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 7 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Heat Ex. Liquid Temp. MODE Timer lamp : 3 times Flash Thermistor Error ERROR CODE : [E : 73]...
  • Page 61 Trouble shooting 22 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 7 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) Outdoor Thermistor Error Timer lamp : 4 times Flash ERROR CODE : [E : 74] : Light OFF : Light ON...
  • Page 62 Indicate or Display: Trouble shooting 23 Outdoor unit : Indoor Unit : OUTDOOR UNIT Error Method: Operation lamp: 7 times Flash, Mode Error L1 L2 Heat Sink Thermistor Error Timer lamp : 7 times Flash ERROR CODE : [E : 77] : Light OFF : Light ON n : n times blinking...
  • Page 63 Trouble shooting 24 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 8 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) Current Sensor Error Timer lamp : 4 times Flash ERROR CODE : [E : 84] : Light OFF : Light ON...
  • Page 64 Trouble shooting 25 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE ERROR Operation lamp: 8 times Flash, MODE (L1) (L2) (L3) (L4) (L5) (L6) Pressure Sensor Error Timer lamp : 6 times Flash ERROR CODE : [E : 86] : Light OFF : Light ON...
  • Page 65 Trouble shooting 26 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 9 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Over Current Error MODE Timer lamp : 4 times Flash ERROR CODE : [E : 94] : Light OFF : Light ON...
  • Page 66 Trouble shooting 27 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 9 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Compressor Control Error MODE Timer lamp : 5 times Flash ERROR CODE : [E : 95] : Light OFF : Light ON...
  • Page 67 Trouble shooting 28 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 9 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Outdoor Unit Fan Motor 1 Error MODE Timer lamp : 7 times Flash ERROR CODE : [E : 97]...
  • Page 68 Trouble shooting 29 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 9 times Flash, ERROR Outdoor Unit Fan Motor 2 Error (L1) (L2) (L3) (L4) (L5) (L6) MODE Timer lamp : 8 times Flash ERROR CODE : [E : 98]...
  • Page 69 Trouble shooting 30 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 9 times Flash, ERROR 4-Way Valve Error MODE (L1) (L2) (L3) (L4) (L5) (L6) Timer lamp : 9 times Flash ERROR CODE : [E : 99] : Light OFF : Light ON...
  • Page 70 Trouble shooting 31 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 10 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Discharge Temp. Error MODE Timer lamp : 1 times Flash ERROR CODE : [E : A1] : Light OFF : Light ON...
  • Page 71 Trouble shooting 32 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 10 times Flash, ERROR (L1) (L2) (L3) (L4) (L5) (L6) Compressor Temp. Error MODE Timer lamp : 3 times Flash ERROR CODE : [E : A3] : Light OFF : Light ON...
  • Page 72 Trouble shooting 33 Indicate of Display: Outdoor unit : OUTDOOR UNIT Error Method: Indoor Unit : PUMP PEAK POWER DOWN NOISE Operation lamp: 10 times Flash, ERROR MODE (L1) (L2) (L3) (L4) (L5) (L6) Low Pressure Error Timer lamp : 5 times Flash ERROR CODE : [E : A5] : Light OFF : Light ON...
  • Page 73 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 Test 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 74 Forecast of Cause: Trouble shooting 35 1. Power Supply failure 2. External cause Outdoor Unit - No Power 3. Electrical Components defective Test 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 75 Forecast of Cause: Trouble shooting 36 1. Setting/ Connection failure 2. External cause No Operation (Power is ON) 3. Electrical Component defective Test 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 76 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 Test 1 : Check Indoor Unit Does Indoor Unit FAN run on HIGH FAN? Is Air Filter dirty? Is Heat Exchanger clogged?
  • Page 77 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 78 Forecast of Cause : Trouble shooting 40 1. House insulation setting has not been changed. Too Warm 2. Temperature sensing location has not been changed. 3. Installation location of the wired remote. 4. Function settings have not been changed. Test 1 : Check insulation level of structure of house Test 1-1 : Check Function Setting  ...
  • Page 79 “Wired remote sensor” Test 3 : Check the remote controller display Test 3-1 : Check Function Setting Is function 42 (Indoor room temperature sensor Is the "Thermo Sensor Icon" displayed on the screen? switching function) set to 01? Ref.) Function Number Setting Va lue Setting Description Indoor unit Both...
  • Page 80 Forecast of Cause : Trouble shooting 41 1. House insulation setting has not been changed. Too Cool 2. Temperature sensing location has not been changed. 3. Installation location of the wired remote. 4. Function settings have not been changed. Test 1 : Check insulation level of structure of house Test 1-1 : Check Function Setting  ...
  • Page 81 “Wired remote sensor” Test 3 : Check the remote controller display Test 3-1 : Check Function Setting Is function 42 (Indoor room temperature sensor Is the "Thermo Sensor Icon" displayed on the screen? switching function) set to 01? Ref.) Function Number Setting Va lue Setting Description Indoor unit Both...
  • Page 82 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 loose bolt or contact noise...
  • Page 83 SERVICE PARTS INFORMATION 2 Inverter Compressor Test 1 : Check Connection Check terminal connection of Compressor (loose or incorrect wiring) (WHITE) (BLACK) Transistor PCB TM305 TM304 TM303 Inverter PCB BLACK WHITE Compressor (RED) Test 2 : Check Winding Resistance Check winding resistance of each terminal If the resistance value is 0 or infinite, replace Compressor.
  • Page 84 SERVICE PARTS INFORMATION 3 Outdoor unit Electronic Expansion Valve ( EEV ) Test 1 : Check Connections Check connection of connector ( Loose connector or open cable ) EXPANSION VALVE COIL BLUE CN111 ORANGE YELLOW WHITE Test 3 : Check Noise at start up Test 2 : Check Coil of EEV Remove connector, check each winding Turn on Power and check operation noise.
  • Page 85 SERVICE PARTS INFORMATION 4 Indoor unit fan motor Test 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. Test 2 : Check resistance of indoor fan motor Refer to below.
  • Page 86 SERVICE PARTS INFORMATION 6 Heater unit Test 1 : Check Connections Check connection of connector ( Loose connector or open cable ) THERMOSTAT HEATER BLACK WHITE FUSE AC250V 5A 1 2 3 4 1 2 3 4 Test 2 : Check electrical components Check Check Fuses.
  • Page 87 SERVICE PARTS INFORMATION 7 Active filter module Test 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 88 SERVICE PARTS INFORMATION 8 (Mounted on Transistor PCB) Test 1 : Check the Transistor of PCB ( for Resistance ) 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.
  • Page 89 R410A WALL MOUNTED type INVERTER 3 . APPENDING DATA...
  • Page 90 3-1. FUNCTION SETTING 3-1-1 INDOOR UNIT Follow the instructions in the Local Setup Procedure, which is supplied with the remote control, in accordance with the installed condition. After the power is turned on, perform the Function Setting on the remote control. The settings may be selected between the following two: Function Number or Setting Value.
  • Page 91 1-3. Setting the Room temperature sensor switching (Only for Wired remote controller) When using the Wired remote controller temperature sensor , change the setting to “Both” (01). Factory setting) Function Number Setting Value Setting Description Indoor unit Both 00: Sensor on the indoor unit is active. 01: Sensors on both indoor unit and wired remote controller are active.
  • Page 92 1-7. Setting the Indoor unit fan control for energy saving for cooling Enables or disables the power-saving function by controlling the indoor unit fan rotation when the outdoor unit is stopped during cooling operation. Factory setting Function Number Setting Value Setting Description Disable Enable...
  • Page 93 Temperature Correction When changing Function 95, perform this setting before other Room temp. control settings (Function 30, 31, 35, 36). If Function 95 is not set first, Room temperature control settings (Function 30, 31, 35, 36) will be reset and you must redo them again. 1-10.
  • Page 94 1-12. Setting the Room temperature control for wired remote controller sensor Depending on the installed environment, correction of the wire remote temperature sensor may be required. Select the appropriate control setting according to the installed environment. To change this setting, set Function 42 to Both "01". Ensure that the Thermo Sensor icon is displayed on the remote controller screen.
  • Page 95 3-1-2 PROCEDURES TO CHANGE THE FUNCTION SETTING FOR WIRELESS RC This procedure changes to the function settings used to control the indoor unit according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. After perform the "FUNCTION SETTING" according to the installation conditions using the remote controller.
  • Page 96 3-1-3 Procedures to change the Function Setting 03-07...
  • Page 97 Selecting the Remote Controller Signal Code (1) Press the START/STOP( ) button until only the clock is displayed on the remote controller display. (2) Press the MODE button for at least 5 seconds to display the current signal code. (initially set to MIN.
  • Page 98 3-2. THERMISTOR RESISTANCE VALUES 3-2-1 INDOOR UNIT Room temperature thermistor Heat exchanger thermistor Temp°F(°C) Resistance(k ) Voltage(V) Temp°F(°C) Resistance(k ) Voltage(V) -22 (-30) 1131.91 0.21 14 (-10) 58.25 0.73 23 (-5) 44.03 0.93 -12 (-25) 804.52 0.29 32 (0) 33.62 1.15 -4 (-20) 579.59...
  • Page 99 3-3. EXTERNAL INPUT AND OUTPUT Indoor unit PCB External input and output PCB SW301 SW302 Rotary switch CN314 CN313 CN2 (Ext. in) CN312 CN3 (Ext. out) CN311 CN310 (Ext. in/out PCB) CN308 External Input connect kit External input External output Connector Input select signal (Optional parts) Operation/Stop...
  • Page 100  External input and output PCB The indoor unit Operation/Stop can be set by using the input terminal on the PCB.  Input select Use either one of these types of connectors according to the application. (Both types of connectors cannot be used simultaneously.) •...
  • Page 101 3-3-2. External output Use an external output cable with appropriate external dimension, depending on the number of ca- bles to be installed.  Indoor unit • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82ft (25 m). •...
  • Page 102  External input and output PCB • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft (25 m). • Output voltage: High DC 12 V±2 V, Low 0 V. • Permissible current: 50 mA •...
  • Page 103 3-3-3. Combination of external input and output By combining the function setting of the indoor unit and rotary switch setting of the External input and output PCB, you can select various combinations of functions. Combination examples of external input and output are as follows: External input Function Rotary...
  • Page 104 External output Function Rotary Indoor unit External input and output PCB Mode setting CN310 CN311 CN312 Cooling Heating Remote External heater 60-08 thermostat On thermostat On controller output output Indoor unit fan External heater 60-09 Error status Operation/Stop operation status output Indoor unit fan External heater...
  • Page 105  Control input function  When function setting is "Operation/Stop" mode 1 • In the case of "Edge" input Rotary SW on Function Mode External input and External input Input signal Command setting / output PCB Off → On Operation Input of indoor unit On →...
  • Page 106  When function setting is "Forced stop" mode • In the case of "Edge" input Rotary SW on Function Mode External input and External input Input signal Command setting / output PCB Forced Off → On stop Input of indoor unit On →...
  • Page 107  When function setting is "Operation/Stop" mode 2 • In the case of "Edge" input Rotary SW on Function Mode External input and External input Input signal Command setting / output PCB Off → On Operation Input of indoor unit Stop (R.C.
  • Page 108  Forced thermostat off function Rotary SW on Function Input Mode External input and External input Command setting / signal output PCB Thermostat Off → On 60-00 / 2 External input and 60-09 / B CN313 output PCB Normal 60-10 / C On →...
  • Page 109 • System figure example External controller Relay Outdoor thermistor External input wire Indoor thermistor Indoor Outdoor Indoor unit temperature temperature Ventilator 88˚F 82˚F (31˚C) (28˚C) Except indoor unit and external wire, all other items are Office Fri 10:00AM Mode Set Temp. locally purchased.
  • Page 110  Control output function  Operation/Stop status Rotary SW on Function Output Mode External input and External output Command setting / signal output PCB Low → High Operation 60-00 / 1, 2 Output of indoor unit High → Low Stop Off →...
  • Page 111  Indoor unit fan operation status Rotary SW on Function Output Mode External input and External output Command setting / signal output PCB Low → High Fan run 60-10 / C Output of indoor unit High → Low Fan stop Off →...
  • Page 112  Set point attainment status NOTE: This function is valid only when function setting 96 is set to “01” (Primary unit) or “02” (Secondary unit). When the room temperature does not reach the set point at a room due to the lower cooling perfor- mance caused by external factor such as the outdoor temperature change, signal is output to tell the attainment status of set point.
  • Page 113  Fresh air conditioner (for external control module*) input func- tion (mode 1 or 7) * Module that reduces or stops the cooling operating ratio of the air conditioner by intaking fresh air such as Direct digital controller. Function Mode External input External output Input signal*...
  • Page 114 • Operation status Signal detected by Outdoor temp. < Indoor temp. : On external controller [Mechanical cooling Off] Outdoor temp. > Indoor temp. : Off (EXT.IN2) Cooling thermostat On (EXT.OUT) Indoor Mechanical cooling unit Fan (49-01) Set temp. + 0.9°F (+ 0.5°C) Indoor temp.
  • Page 115 Indoor unit Indoor unit heater • Inappropriate designing and installation of external heater may cause a fire by emitted heat from the external heater. • Fujitsu General Ltd. is not responsible for inappropriate designing or installation of external heating device. 03-25...
  • Page 116  Auxiliary heater control 1 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off • Error occurred •...
  • Page 117  Heat pump prohibition control Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off • Error occurred •...
  • Page 118  Heater selection control by outdoor temperature 1 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off •...
  • Page 119  Heater selection control by outdoor temperature 2 Operation Condition Heater on Heater is on as shown in following diagram of heating temperature. • Heater is off as shown in following diagram of heating temperature. • Other than heating mode Heater off •...
  • Page 120 3-3-17,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan Jun. 2016 Printed in Japan...

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