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Fujitsu AU G12LVLB Series Service Instruction

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SERVICE
INSTRUCTION
R410A
SPLIT TYPE
ROOM AIR CONDITIONER
Floor Ceiling
Slim Duct
Duct
type
Cassette
INVERTER
Models
Indoor unit
AU* G12LVLB
AU* G14LVLB
AU* G18LVLB
AR* G12LLTB
AR* G14LLTB
AR* G18LLTB
AB* G18LVTB
AR* G12LSLAP
AR* G14LSLAP
AR* G18LSLAP
type
type
Mini Duct
type
Outdoor unit
AO* G12LALL
AO* G14LALL
AO* G18LALL
type

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Summary of Contents for Fujitsu AU G12LVLB Series

  • Page 1 SPLIT TYPE ROOM AIR CONDITIONER Floor Ceiling type Slim Duct type Duct Mini Duct type type Cassette type INVERTER SERVICE INSTRUCTION Models Indoor unit Outdoor unit AU* G12LVLB AO* G12LALL AU* G14LVLB AO* G14LALL AU* G18LVLB AO* G18LALL AR* G12LLTB AR* G14LLTB AR* G18LLTB AB* G18LVTB...

  • 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..................01-09 7. LOUVER CONTROL....................01-10 8. COMPRESSOR CONTROL..................01-13 9.
  • Page 3 2. TROUBLE SHOOTING 2-1 ERROR DISPLAY...................... 02-01 02-01 2-1-1 INDOOR UNIT & WIRED REMOTE CONTROLLER DISPLAY......2-1-2 WIRED REMOTE CONTROLLER DISPLAY............02-02 2-1-3 WIRELESS LAN INDICATOR DISPLAY............. 02-03 2-1-4 MOBILE APP DISPLAY(For AIR CONDITIONER)..........02-04 2-1-5 MOBILE APP DISPLAY(In WIRELESS LAN CONTROL SYSTEM)....02-05 2-2 TROUBLE SHOOTING WITH ERROR CODE............

  • Page 4: Description Of Each Control Operation

    R410A FLOOR CEILING / SLIM DUCT MINI DUCT / CASSETTE type INVERTER 1 . DESCRIPTION OF EACH CONTROL OPERATION...

  • Page 5: Cooling Operation

    1-1. COOLING OPERATION 1-1-1 COOLING CAPACITY CONTROL 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. The maximum frequency is limited in the range shown in Figure 1 based on the fan speed mode and the outdoor temperature.

  • Page 6: Heating Operation

    1-2. HEATING OPERATION 1-2-1 HEATING CAPACITY CONTROL 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 3 degC 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 18°C 30°C...
  • Page 8 AUTO CHANGEOVER operation flow chart START Setting temperature Room temp. Ts + 2 °C ? Room temp. Ts - 2 °C ? Middle zone Operation mode COOLING (AUTO:DRY) HEATING OPERATION of outdoor unit : Cooling or Dry? OPERATION Thermostat remains Thermostat remains Operation mode in OFF state for 6 minutes or...

  • Page 9: Indoor Fan Control

    1-5. INDOOR FAN CONTROL 1. Fan speed ( Table 5 : Indoor Fan Speed ) AB*G18LVTB Operation mode Air flow mode Speed (rpm) Heating 1040 1000 Quiet Cool air prevention S-Lo 1040 Cooling Quiet *Soft Quiet Auto S-Lo Monitoring AR*G12LLTB AR*G14LLTB Operation mode Air flow mode...
  • Page 10 AR*G12LSLAP AR*G14LSLAP Operation mode Air flow mode Operation mode Air flow mode Speed (rpm) Speed (rpm) Heating 1240 Heating 1500 1220 1030 Quiet Quiet S-Lo S-Lo 1240 1500 Cooling Cooling 1220 1030 Quiet Quiet S-Lo S-Lo Auto Auto S-Lo S-Lo Monitoring Monitoring AR*G18LSLAP...
  • Page 11 AU*G12LVLB AU*G14LVLB Operation mode Air flow mode Operation mode Air flow mode Speed (rpm) Speed (rpm) Heating Heating Quiet Quiet Cool air prevention Cool air prevention S-Lo S-Lo Cooling Cooling Quiet Quiet *Soft Quiet *Soft Quiet Auto Auto S-Lo S-Lo Monitoring Monitoring AU*G18LVLB...
  • Page 12 3. COOLING OPERATION (Auto : Cooling) Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature, as shown in Figure 5. On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [COOL] operation modes QUIET, LOW, MED, HIGH, as shown in Table 5.
  • Page 13 7. COOL AIR PREVENTION CONTROL (Heating mode) The maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected temperature by the indoor heat exchanger sensor on heating mode. When the compressor does not operate, the indoor fan motor operates [S-Lo] mode. ( Fig.8 : Cool Air Prevention Control ) 7-1.

  • Page 14: Outdoor Fan Control

    1-6. OUTDOOR FAN CONTROL 1. Outdoor Fan Motor Following table shows the fan speed of the outdoor unit. ( Table 6 : Fan speed of the outdoor unit ) Outdoor temperature Cooling Over than 12°C 860/ 820/ 770/ 670/ 500 rpm 500 rpm AO*G12LALL Less than 12°C...

  • Page 15: Louver Control

    1-7. LOUVER CONTROL 1. For Ceiling Type < AB*G18LVTB > (Function Range) Each time the button is pressed, the air direction range will change as follows: (Fig.9 : Air Direction Range) (Operation Range) During Cooling/Dry mode : During Heating mode Fan mode Use the air direction adjustments within the ranges shown above.
  • Page 16 (Function Range) Each time the button is pressed, the air direction range will change as follows: RIGHT/LEFT air direction louvers (Fig.10 : Air Direction Range) Use the air direction adjustments within the ranges shown above. The remote control unit's display does not change. 1-4.
  • Page 17 (Function Range) Each time the button is pressed, the air direction range will change as follows: (Fig.11 : Air Direction Range) (Operation Range) During Cooling/Dry mode/Fan mode : During Heating mode Use the air direction adjustments within the ranges shown above. The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

  • Page 18: 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 8. (Table 8 : Compressor Operation Frequency Range) Cooling Heating AO*G12LALL 18rps 80rps 18rps 120rps 34rps AO*G14LALL 18rps 113rps...

  • Page 19: Timer Operation Control

    1-9. TIMER OPERATION CONTROL 1-9-1 Wired Remote Controller AR-WAE1E ON / TIMER OFF / TIMER WEEKLY TIMER TEMPERATURE SET BACK TIMER 1. ON / OFF TIMER OFF timer : When the clock reaches the set time, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 20 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 21 1-9-2 Wireless Remote Controller AR-RAH1E ON / TIMER OFF / TIMER PROGRAM TIMER SLEEP TIMER 1. ON / OFF TIMER OFF timer : When the clock reaches the set time, the air conditioner will be turned off. Operation mode Stop mode Set time of timer ON timer : When the clock reaches the set time, the air conditioner will be turned on.
  • Page 22 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 1 degC.

  • Page 23: 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.

  • Page 24: Auto Restart

    1-14. AUTO RESTART When the power was interrupted by a power failure, etc. during operation, the operation contents at that time are memorized and when power is recovered, operation is automatically resumed with the memorized operation contents. (Table 9 : Operation contents memorized when the power is interrupted) Wired remote controller Wired remote controller Wireless remote...

  • Page 25: C Heat Operation

    1-17. 10 °C HEAT OPERATION 10°C HEAT operation performs as below when pressing 10°C HEAT button. (Table 11) Heating Operation mode Setting temp. 10°C Fan control mode Auto Economy LED display Defrost operation Operate as normal 1-18. ECONOMY OPERATION The ECONOMY operation functions by pressing ECONOMY button on the remote controller. At the maximum output, ECONOMY Operation is approximately 70% of normal air conditioner operation for cooling and heating.

  • Page 26: Drain Pump Operation

    1-21. DRAIN PUMP OPERATION (For AU / AR type) During Cooling / Dry mode 1. When the compressor starts, the drain pump starts simultaneously. 2. The drain pump operates continuously for 3 minutes after the compressor is turned off. 3. When the compressor stops by the "Anti- freezing protection", the drain pump is turned off in 1 hour after the compressor stops.

  • Page 27: Defrost Operation Control

    1-22. DEFROST OPERATION CONTROL 1. CONDITION OF STARTING THE DEFROST OPERATION The defrost operation starts when the outdoor heat exchanger temperature sensor detects the temperature lower than the values shown in Table 13. (Table 13 : Condition of starting Defrost Operation) 1st time defrosting after starting operation Compressor contiguous Below 10 min.
  • Page 28 3. Defrost Flow Chart The defrosting shall proceed by the integrating operation time and outdoor heat exchanger emperature as follows. Heating operation start : Compressor ON (Not defrosted for 10 minutes) In case of 2nd In case of Integrating defrost In case of 1st defrost and later defrost for intermittent operation...

  • Page 29: Off Defrost Operation Control

    1-23. OFF DEFROST OPERATION 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 30: Various Protections

    1-24. VARIOUS PROTECTIONS 1. DISCHARGE GAS TEMPERATURE OVER RISE PREVENTION CONTROL The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas temperature. When the discharge temperature becomes higher than 104°C, the compressor frequency is decreased 20rps, and it continues to decrease the frequency for 20rps every 120 seconds until the temperature becomes lower than 101°C.

  • Page 31: Forced Cooling Operation

    4. COOLING PRESSURE OVER RISE PROTECTION On cooling mode, the compressor frequency is controlled as following based on the detection value of the outdoor heat exchanger temperature sensor. (Fig.17 : Cooling Pressure Over Rise Protection Control) Outdoor heat exchange temperature Compressor is OFF 67°C The compressor frequency is...

  • Page 32: Trouble Shooting

    R410A FLOOR CEILING / SLIM DUCT MINI DUCT / CASSETTE type INVERTER 2 . TROUBLE SHOOTING...

  • Page 33: Error Display

    2. TROUBLESHOOTING 2-1 ERROR DISPLAY 2-1-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY Please refer the flashing pattern as follows. The Operation, Timer, Economy lamps operate as follows according to the error contents. Indoor Unit Display Wired Remote Trouble Error Contents Controller shooting Operation...

  • Page 34: Wired Remote Controller Display

    2-1-2 WIRED REMOTE CONTROLLER DISPLAY (2 wire remote controller) 4. Check the error This appears automatically on the display if an error occurs. If an error occurs, the following display will be shown. (" " will appear in the "Monitor Mode Screen") Error code 2-wire remote controller address...
  • Page 35 (3 wire remote controller) 1. SELF - DIAGNOSIS When " Er " in Temperature Display is displayed, inspection of the air conditioning system is necessary. Please consult authorized service personnel. Unit number (usually 0) Error code SU MOTU WETH FR SA ex.

  • Page 36: Wireless Lan Indicator Display

    For AR*G**LSLAP 2-1-3 WIRELESS LAN INDICATOR DISPLAY 1. WIRELESS LAN CONTROL system layout Indoor unit Internet Controller PCB Outdoor unit CLOUD Mobile App WIRELESS Parts (Mobile device) WIRELESS LAN Router ADAPTER 2. NAME OF PARTS 3. WIRELESS LAN ADAPTER INDICATOR Please refer the flashing pattern as follows.

  • Page 37: Mobile App Display(For Air Conditioner)

    2-1-4 MOBILE APP DISPLAY ( For AIR CONDITIONER ) 1. ERROR DISPLAY If there is an abnormality on the air conditioning, you will see is as follows.   When you tap the "Error button” on the home screen, Error Code and Error Name is displayed. For Android Error button AIR CINDITIONER ERROR...

  • Page 38: Mobile App Display(In Wireless Lan Control System)

    2-1-5 MOBILE APP DISPLAY ( In Wireless LAN Control system ) 1. ERROR DISPLAY If there is an abnormality on the Wireless LAN control system, you will see is as follows. Error messages will disappear at 5 seconds. Then retune to normal display. For Android For iOS Erro...
  • Page 39 Solutions Error messages Causes Could not register the The air conditioner is Enter the Wi-Fi setting on the device. Make sure the not connected to the mobile device, then check if the device is ready for router. SSID of the air conditioner registration.
  • Page 40 Registration Errors (For iOS) Error messages Causes Solutions You need an internet The user has disabled Enable Wi-Fi from the iOS connection to add new Wi-Fi on their mobile setting. devices. device. Could not register The mobile device Connect the mobile device same LAN device.
  • Page 41 Error messages Causes Solutions Could not register the The router the Check if the router connected to device. Make sure the air conditioner is the air conditioner has internet device is ready for connected to, has no access. (You can check by registration.
  • Page 42 General Errors (For Android) Error messages Causes Solutions No connectivity to Wi- The mobile device has Connect the mobile device to the no internet access. internet. Fi or the cloud. Please check your network connection. An error occurred while trying to update again later.
  • Page 43 General Errors (For iOS) Causes Solutions Error messages Failed to change The mobile device has Connect the mobile device to the password. no internet access. internet. Cloud not determine service reachability. Failed to update property. Could not retrieve schedules. The operation couldn’t be completed.

  • Page 44: Trouble Shooting With Error Code(For Wireless Lan Adapter)

    2-2 TROUBLE SHOOTING WITH ERROR CODE Indicate or Display: Trouble shooting 1 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 1 time Flash Serial communication error Economy lamp : Continuous flash. (Serial reverse transfer error) ERROR CODE : [E : 11] Detective Actuators:...
  • Page 45 Indicate or Display: Trouble shooting 2 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 1 time Flash Serial communication error Economy lamp : Continuous flash. (Serial forward transfer error) ERROR CODE : [E : 11] Detective Actuators: Detective details:...
  • Page 46 Indicate or Display: Trouble shooting 3 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 2 time Flash Wired remote controller Economy lamp : Continuous flash. communication error ERROR CODE : [E : 12] Detective Actuators: Detective details: Indoor unit Controller PCB...
  • Page 47 For AR*G**LSLAP Trouble shooting 4 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 8 time Flash Economy lamp : Continuous flash. External Communication Error ERROR CODE : [E : 18] Detective Actuators: Detective details: External communication error...
  • Page 48 Indicate or Display: Trouble shooting 5 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 2 time Flash, Timer lamp: 2 time Flash Economy lamp : Continuous flash. Indoor unit capacity error ERROR CODE : [E : 22] Detective Actuators: Detective details: The total capacity of the indoor unit if it is install beyond.
  • Page 49 For AR*G**LSLAP Trouble shooting 6 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 2 time Flash, Timer lamp: 6 time Flash Address Setting Error Economy lamp : Continuous flash. In Wired Remote Controller System ERROR CODE : [E : 26] Detective Actuators: Detective details:...
  • Page 50 For AR*G**LSLAP Trouble shooting 7 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 2 time Flash, Timer lamp: 9 time Flash Connection Unit Number Error Economy lamp : Continuous flash. (Indoor unit in Wired RC Error) ERROR CODE : [E : 29] Detective Actuators: Detective details:...
  • Page 51 Indicate or Display: Trouble shooting 8 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 3 time Flash, Timer lamp: 2 time Flash Indoor unit PCB model information error Economy lamp : Continuous flash. ERROR CODE : [E : 32] Detective details: Detective Actuators: When power is on and there is some below case.
  • Page 52 Indicate or Display: Trouble shooting 9 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 3 time Flash, Timer lamp: 5 time Flash Manual auto switch error Economy lamp : Continuous flash. ERROR CODE : [E : 35] Detective Actuators: Detective details: Indoor unit Controller PCB...
  • Page 53 For AR*G**LSLAP Trouble shooting 10 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 3 time Flash, Timer lamp: 10 time Flash Indoor Unit (Communication Circuit) Economy lamp : Continuous flash. WRC Error ERROR CODE : [E : 3A] Detective Actuators: Detective details:...
  • Page 54 Indicate or Display: Trouble shooting 11 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 4 time Flash, Timer lamp: 1 time Flash Indoor room thermistor error Economy lamp : Continuous flash. ERROR CODE : [E : 41] Detective details: Detective Actuators: Indoor unit Controller PCB...
  • Page 55 Indicate or Display: Trouble shooting 12 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 4 time Flash, Timer lamp: 2 time Flash Indoor heat ex. thermistor error Economy lamp : Continuous flash. ERROR CODE : [E : 42] Detective Actuators: Detective details: Indoor unit Controller PCB...
  • Page 56 Indicate or Display: Trouble shooting 13 INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 5 time Flash, Timer lamp: 1 time Flash Indoor unit fan motor error Economy lamp : Continuous flash. ERROR CODE : [E : 51] Detective Actuators: Detective details: When the condition that actual frequency of Indoor Fan is...
  • Page 57 Indicate or Display: Trouble shooting 14 Outdoor Unit : No indication INDOOR UNIT Error Method: Indoor Unit : Operation lamp: 5 time Flash, Timer lamp: 3 time Flash Drain pump error Economy lamp : Continuous flash. ERROR CODE : [E : 53] Detective Actuators: Detective details: Indoor unit Controller PCB...
  • Page 58 Trouble shooting 15 Indicate or Display: INDOOR UNIT Error Method: Outdoor Unit : No indication Indoor Unit : Operation lamp: 6 time Flash, Timer lamp: 2 time Flash Outdoor unit main PCB model Economy lamp : Continuous flash. information error or communication error ERROR CODE : [E : 62] Detective details: Detective Actuators:...
  • Page 59 Indicate or Display: Trouble shooting 16 Outdoor Unit : No indication OUTDOOR UNIT Error Method: INDOOR UNIT Indoor Unit : Operation lamp: 6 time Flash, Timer lamp: 4 time Flash PFC circuit error Economy lamp : Continuous flash. ERROR CODE : [E : 64] Detective Actuators: Detective details: Outdoor unit Main PCB...
  • Page 60 Indicate or Display: Trouble shooting 17 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 6 time Flash, Timer lamp: 5 time Flash Economy lamp : Continuous flash. Trip terminal L error ERROR CODE : [E : 65] Detective details: Detective Actuators: When the signal from FO terminal of IPM in Main PCB is "L"(=0V)
  • Page 61 Indicate or Display: Trouble shooting 18 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 7 time Flash, Timer lamp: 1 time Flash Discharge temp. sensor error Economy lamp : Continuous flash. ERROR CODE : [E : 71] Detective details: Detective Actuators: When the discharge pipe temperature thermistor open or short-circuit...
  • Page 62 Indicate or Display: Trouble shooting 19 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 7 time Flash, Timer lamp: 3 time Flash Outdoor unit Heat Ex. liquid temp. Economy lamp : Continuous flash. sensor error ERROR CODE : [E : 73] Detective Actuators: Detective details:...
  • Page 63 Indicate or Display: Trouble shooting 20 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 7 time Flash, Timer lamp: 4 time Flash Outdoor temp. sensor error Economy lamp : Continuous flash. ERROR CODE : [E : 74] Detective Actuators: Detective details: Outdoor unit Main PCB...
  • Page 64 Indicate or Display: Trouble shooting 21 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 4 time Flash Trip detection Economy lamp : Continuous flash. ERROR CODE : [E : 94] Detective details: Detective Actuators: When more than normal operating current to IPM in Main PCB flows,...
  • Page 65 Indicate or Display: Trouble shooting 22 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 5 time Flash Compressor rotor position Economy lamp : Continuous flash. detection error (permanent stop) ERROR CODE : [E : 95] Detective details: Detective Actuators:...
  • Page 66 Indicate or Display: Trouble shooting 23 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 7 time Flash Outdoor unit fan motor error Economy lamp : Continuous flash. ERROR CODE : [E : 97] Detective Actuators: Detective details: When outdoor fan rotation speed is less than 100rpm in 20 seconds...
  • Page 67 Indicate or Display: Trouble shooting 24 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 9 time Flash, Timer lamp: 9 time Flash 4-way valve error Economy lamp : Continuous flash. ERROR CODE : [E : 99] Detective Actuators: Detective details: When the indoor heat exchanger temperature is compared with...
  • Page 68 Indicate or Display: Trouble shooting 25 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 10 time Flash, Timer lamp: 1 time Flash Discharge temp. error Economy lamp : Continuous flash. ERROR CODE : [E : A1] Detective details: Detective Actuators: Outdoor unit Main PCB...
  • Page 69 Indicate or Display: Trouble shooting 26 Outdoor Unit : No indication OUTDOOR UNIT Error Method: Indoor Unit : Operation lamp: 10 time Flash, Timer lamp: 3 time Flash Compressor temp. error Economy lamp : Continuous flash. ERROR CODE : [E : A3] Detective Actuators: Detective details: "Protection stop by...
  • Page 70 2-3 TROUBLE SHOOTING WITH NO ERROR CODE Forecast of Cause: Trouble shooting 27 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 71 Forecast of Cause: Trouble shooting 28 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 72 Forecast of Cause: Trouble shooting 29 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 73 Forecast of Cause: Trouble shooting 30 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 74 Forecast of Cause : Trouble shooting 31 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 75 2-4 TROUBLE SHOOTING WITH ERROR CODE (For WIRELESS LAN ADAPTER) Trouble shooting 33 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : External Communication Error Operation lamp: 1 times Flash, LED 1 (Green) : Flashing Fast Timer lamp : 8 times Flash LED 2 (Orange) : ON...
  • Page 76 Trouble shooting 34 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 77 Trouble shooting 35 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Operation lamp: No indication LED 1 (Green) : ON Network Communication Error Timer lamp : No indication LED 2 (Orange) : Flashing Fast (Communication Error of between Wireless LAN Router to Wireless LAN adapter) ERROR CODE : [ No indication ]...
  • Page 78 Trouble shooting 36 Indicate of Display: INDOOR UNIT Error Method: Indoor Unit : Wireless LAN adapter : Operation lamp: 1 time Flash LED 1 (Green) : Flashing Fast Communication Error Timer lamp : 8 time Flash LED 2 (Orange) : Flashing Fast (”Trou.
  • Page 79 CONTINUATION Check Point 3-2 : Check 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 Please cancel the air conditioner of the registration on the Mobile App.
  • Page 80 Trouble shooting 37 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 81 Air Conditioning De-registration Method If you replace the Wireless LAN adapter, you will need to conditioner information on the App. de-register all of the Unregister method is as follows. Launch the mobile app(FGL air). FGL air Please long-push the registered “Device name”...
  • Page 82 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). Check that the smartphone or tablet PC is linked to the wireless router you are connecting the air conditioner.

  • Page 83: 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 Check if vibration noise by Is there open or loose connection Is there open or loose connection loose bolt or contact noise...
  • Page 84 SERVICE PARTS INFORMATION 2 Inverter Compressor Check Point 1 : Check Connection Check terminal connection of Compressor (loose or incorrect wiring) C(T) S(S) (BLACK) (WHITE) Main PCB R(R) (RED) Check Point 2 : Check Winding Resistance Check winding resistance of each terminal If the resistance value is 0 or infinite, replace Compressor.
  • Page 85 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 BROWN BLUE CN40 ORANGE YELLOW WHITE Check Point 3 : Check noise at start up Check Point 2 : Check Coil of EEV Remove connector, check each winding Turn on Power and check operation noise.
  • Page 86 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 87: Appending Data

    R410A FLOOR CEILING / SLIM DUCT MINI DUCT / CASSETE type INVERTER 3 . APPENDING DATA...

  • Page 88: Function Setting

    3-1. FUNCTION SETTING 3-1-1 INDOOR UNIT (For AU*G12/14/18LVLB / AR*G12/14/18LLTB / AB*G18LVTB) 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 89 1-4. Setting the Static pressure (For AR*G12/14/18LLTB only) Select appropriate static pressure according to the installation conditions. Factory setting) Setting Description Function Number Setting Value 0 Pa 10 Pa 20 Pa 30 Pa 40 Pa 50 Pa 60 Pa 70 Pa 80 Pa 90 Pa 25 Pa [Standard]...
  • Page 90 1-7. Setting the Auto restart he following settings are also possible, depending on the operating conditions. Factory setting) Setting Description Function Number Setting Value Please do not change to AUTO RESTART "01" when you want to manage it centrally. 1-8. Setting the Indoor room temperature sensor switching function (Only for Wired remote controller) The following settings are needed when use the control by Wired remote controller temperature sensor.

  • Page 91: Indoor Unit (For Ar*G12/ 14/ 18Lslap)

    3-1-2 INDOOR UNIT (For AR*G12/ 14/ 18LSLAP) 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 92 1-3. Room temperature control for indoor unit sensor Depending on the installed environment, correction of the room temperature sensor may be re- quired. Select the appropriate control setting according to the installed environment. The temperature correction values show the difference from the Standard setting "00" (manufactur- er’s recommended value).
  • Page 93 1-6. Setting the Indoor room temperature sensor switching function (Only for Wired remote controller) The following settings are needed when use the control by Wired remote controller temperature sensor. Factory setting) Setting Description Function Number Setting Value If setting value is “00”, room temperature is controlled by the indoor unit temperature sensor.
  • Page 94 1-11 Switching functions for external output terminal Functions of the external output terminal can be switched. Factory setting) Setting Description Function Number Setting Value Operation status (Setting prohibited) 01 to 08 Error status Fresh air control Auxiliary heater 03-07...
  • Page 95 3-1-2 Procedures to change the Function Setting This item cannot be set from slave remote controllers. 03-08...
  • Page 96 The function settings of the control of the indoor unit can be changed by this procedure according to the installation conditions. Incorrect settings can cause the indoor unit malfunction. After the power is turned on, perform the "FUNCTION SETTING" according to the installation conditions using the remote controller.
  • Page 97 FUNCTION SETTING METHOD (for Wireless remote controller) Entering the Function Setting Mode While pressing the FAN button and SET TEMP.( ) button simultaneously, press the RESET button to enter the function setting mode. 10°C HEAT STEP 1. Setting the Remote controller Signal Code Use the following steps to select the signal code of the remote controller.
  • Page 98 REMOTE CONTROLLER SIGNAL CODE SETTING Use the following steps to select the signal code of the remote controller. (Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code.) (1) Press the START/STOP button until only the clock is displayed on the remote controller display.
  • Page 99 Wierless remote controller (option:UTY-LBT*M) Perform the “FUNCTION SETTING” according to the installation conditions using the remote controller. CAUTION Confirm whether the wiring work for outdoor unit has been finished. Confirm that the cover for the electrical enclosure on the outdoor unit is in place. This procedure changes to the function settings used to control the indoor unit according to the installation conditions.

  • Page 100: Thermistor Resistance Values

    3-2. Thermistor Resistance Values 3-2-1 INDOOR UNIT For AB / AR / AU type For AB / AU type For AR type Room temperature thermistor Indoor heat exchanger thermistor Indoor heat exchanger thermistor Temp (°C) Resistance(k ) Voltage(V) Temp (°C) Resistance(k ) Voltage(V) Temp (°C) Resistance(k ) Voltage(V)
  • Page 101 3-3-17,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan May 2017 Printed in Japan...

This manual is also suitable for:

Au g14lvlb seriesAu g18lvlb seriesAr g12lltb seriesAr g14lltb seriesAr g18lltb seriesAb g18lvtb series ... Show all

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