Fujitsu General ASHG07KPCE Service Manual
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Fujitsu General ASHG07KPCE Service Manual

Wall mounted type
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AIR CONDITIONER
Wall mounted type
INDOOR
OUTDOOR
SERVICE MANUAL
ASHG07KPCE
ASHG09KPCE
ASHG12KPCE
AOHG07KPCA
AOHG09KPCA
AOHG12KPCA
SR_AS059EG_02
2022.07.07
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Summary of Contents for Fujitsu General ASHG07KPCE

  • Page 1 AIR CONDITIONER Wall mounted type SERVICE MANUAL INDOOR ASHG07KPCE ASHG09KPCE ASHG12KPCE OUTDOOR AOHG07KPCA AOHG09KPCA AOHG12KPCA SR_AS059EG_02 2022.07.07...
  • Page 2 • Product specifications and design are subject to change without notice for future improvement. • For further details, please check with our authorized dealer. Trademarks ™ FGLair is trademark of Fujitsu General Limited in the United States, other countries or both. ™ Google Play is trademark of Google LLC. ®...
  • Page 3 CONTENTS 1. GENERAL INFORMATION 2. TECHNICAL DATA AND PARTS LIST 3. TROUBLESHOOTING 4. CONTROL AND FUNCTIONS 5. FILED WORKING...
  • Page 5 1. GENERAL INFORMATION 2021.12.16 SR_CH01_AS059EG_01...
  • Page 6 CONTENTS 1. GENERAL INFORMATION 1. Specifications....................01-1 1-1. Indoor unit ........................01-1 1-2. Outdoor unit........................01-3 2. Dimensions....................01-4 2-1. Indoor unit ........................01-4 2-2. Outdoor unit........................01-6...
  • Page 7 1. Specifications 1-1. Indoor unit Wall mounted Type Inverter heat pump Model name ASHG07KPCE ASHG09KPCE ASHG12KPCE Power supply 230 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 198—264 V 2.00 2.50 3.40 Rated Btu/h 6,800 8,500 11,600 Cooling 0.9—2.8...
  • Page 8 Specifications for Lot10 Model name ASHG07KPCE ASHG09KPCE ASHG12KPCE Cooling Energy efficiency class Heating (Average) Cooling 2.0 (35 °C) 2.5 (35 °C) 3.4 (35 °C) P design Heating (Average) 2.2 (-10 °C) 2.4 (-10 °C) 2.5 (-10 °C) SEER Cooling kWh/kWh SCOP Heating (Average) Annual energy consumption...
  • Page 9 1-2. Outdoor unit Type Inverter heat pump Model name AOHG07KPCA AOHG09KPCA AOHG12KPCA Power supply 230 V ~ 50 Hz Power supply intake Outdoor unit Available voltage range 198—264 V Starting current Cooling 1,650 1,700 Airflow rate Heating 1,450 1,470 Type × Q'ty Propeller fan ×...
  • Page 10 2. Dimensions 2-1. Indoor unit ¢ Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE Unit: mm Outline of indoor unit for pipe inlet Ø65 - (01-4) - 2-1. Indoor unit 2. Dimensions...
  • Page 11  Installation space requirement Provide sufficient installation space for product safety. Unit: mm 30 or more 40 or more Wall hook bracket Outline of the indoor unit 107 or more 163 or more 1,500 or more The flare connection part should be installed outdoors.
  • Page 12 2-2. Outdoor unit ¢ Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA Unit: mm 4-M10 hole Pitch of bolts for installation Top view Side view Front view Side view Airflow Drain port Ø42 Bottom view Side view (Valve part) - (01-6) - 2-2. Outdoor unit 2.
  • Page 13 2. TECHNICAL DATA AND PARTS LIST 2022.07.07 SR_CH02_AS059EG_02...
  • Page 14 CONTENTS 2. TECHNICAL DATA AND PARTS LIST 1. Precautions....................02-1 2. Indoor unit parts list..................02-2 2-1. Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE ........02-2 3. Outdoor unit parts list.................02-6 3-1. Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA ........02-6 4. Accessories ....................02-10 4-1. Indoor unit ........................02-10 4-2.
  • Page 15 • Service parts information and design are subject to change without notice for product improve- ment. • For the latest information of the service parts, refer to our Service Portal. https://fujitsu-general.force.com/portal/ • Precise figure of the service parts listed in this manual may differ from the actual service parts. - (02-1) -...
  • Page 16 2. Indoor unit parts list 2-1. Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE ¢ Exterior parts - (02-2) - 2-1. Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE 2. Indoor unit parts list...
  • Page 17 Item no. Part no. Part name Service part 9388147017 Bracket panel ♦ 9387597066 Wire cover assy ♦ 9333888002 Louver assy (Up/Down) ♦ 9387476002 Screw cap ♦ 9333872018 Under cover R ♦ 9334098004 Remote controller holder ♦ 9334138083 Remote controller assy ♦...
  • Page 18 ¢ Chassis - (02-4) - 2-1. Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE 2. Indoor unit parts list...
  • Page 19 Item no. Part no. Part name Service part 9333897028 Evaporator total assy ♦ 9387467017 Room thermistor holder ♦ 9333865003 Box shield ♦ 9901013010 Terminal ♦ 9900627065 Thermistor assy ♦ 9711141040 Main PCB (for 07 model) ♦ 9711141057 Main PCB (for 09 model) ♦...
  • Page 20 3. Outdoor unit parts list 3-1. Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA ¢ Exterior parts and chassis - (02-6) - 3-1. Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA 3. Outdoor unit parts list...
  • Page 21 Item no. Part no. Part name Service part 9322556165 Top panel assy ♦ 9709687154 Main PCB (for 07 model) ♦ 9709687178 Main PCB (for 09 model) ♦ 9709687192 Main PCB (for 12 model) ♦ 9900727062 Thermistor assy ♦ 9900565053 Thermistor assy (outdoor temp) ♦...
  • Page 22 ¢ Compressor - (02-8) - 3-1. Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA 3. Outdoor unit parts list...
  • Page 23 Item no. Part no. Part name Service part 9324124003 Compressor assy (for 07-09 model) ♦ 9324125000 Compressor assy (for 12 model) ♦ 9322392015 4-way valve assy ♦ 9970110153 Solenoid ♦ 9970222009 Expansion valve coil ♦ 9322403001 Pulse motor valve ♦ 9322472007 2-way valve assy ♦...
  • Page 24 4. Accessories 4-1. Indoor unit ¢ Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE Part name Exterior Q’ty Part name Exterior Q’ty Operating manual Tapping screw (large) Operating manual Tapping screw (small) (CD-ROM) Installation manual Remote controller Remote controller Wall hook bracket holder Battery Cloth tape 4-2.
  • Page 25 5. Optional parts 5-1. Others Exterior Part name Model name Summary Air Cleaning Air Cleaning Filter can be mounted to UTR-FA16-5 Filter the indoor unit. Remotely manage an air conditioning system using mobile devices such as smartphones and tablets. Wireless LAN Appropriate application for each region UTY-TFSXF2 adapter...
  • Page 26 6. Refrigerant system diagrams 6-1. Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA Heat exchanger 3-way (INDOOR) valve 2-way Muffler valve 4-way valve Strainer Expansion valve Heat exchanger Strainer (OUTDOOR) Cooling Heating : Thermistor (Discharge temperature) : Thermistor (Outdoor temperature) : Thermistor (Heat exchanger out temperature) : Thermistor (Pipe temperature) : Thermistor (Room temperature) - (02-12) -...
  • Page 27 7. Wiring diagrams 7-1. Indoor unit ¢ Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE - (02-13) - 7-1. Indoor unit 7. Wiring diagrams...
  • Page 28 7-2. Outdoor unit ¢ Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA - (02-14) - 7-2. Outdoor unit 7. Wiring diagrams...
  • Page 29 8. PC board diagrams 8-1. Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE CONTROL UNIT 07 model : EZ-0180BHSE 09 model : EZ-0180CHSE 12 model : EZ-0180DHSE CN1 Thermistor Characteristics. Temperature ( 20 ( 30 Thermistor 176.03 k 39.57 k 62.91 k Thermistor ( Pipe temp. ) 1.10 V 2.21 V 2.79 V...
  • Page 30 8-2. Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA INVERTER ASSEMBLY 07, 09, 12 models : EZ-0192THUE EMI FILTER F8CT TR-28-16-13 3 TURNS COMPRESSOR UL3271 AWG16 W400 REACTOR 13mH 8A Compressor UL3271 AWG16 W401 WHITE WHITE Winding Resistance EMI FILTER EMI FILTER UL3271 AWG16 TO INDOOR UNIT W402 BLACK...
  • Page 31 3. TROUBLESHOOTING 2022.07.07 SR_CH03_AS059EG_02...
  • Page 32 CONTENTS 3. TROUBLESHOOTING 1. Error code ....................03-1 1-1. How to check the error memory..................03-1 1-2. How to erase the error memory ..................03-1 1-3. Error code table (Indoor unit and wired remote controller)..........03-2 1-4. Error code table (Wireless LAN indicator)...............03-3 2. Troubleshooting with error code ...............03-4 2-1.

  • Page 33: Table Of Contents

    CONTENTS (continued) 5-1. Compressor........................03-48 5-2. Inverter compressor......................03-49 5-3. Outdoor unit Electronic Expansion Valve (EEV) ............03-51 5-4. Indoor unit fan motor ....................03-53 5-5. Outdoor unit fan motor....................03-54 6. Thermistor resistance values..............03-55 6-1. Indoor unit ........................03-55 6-2. Outdoor unit........................03-56...
  • Page 35 1. Error code When a problem occurs in the system or the connected device, the error content is notified by dis- playing the code. NOTE: This function is only available in a system with indoor or IR receiver units equipped with in- dicator lamps to show the error content.
  • Page 36 1-3. Error code table (Indoor unit and wired remote controller) The operation, timer, and economy indicators operate according to the error contents. For confirmation of the error contents, refer the flashing pattern as follows. Indoor unit display Wired remote Error contents Operation [ ] Timer [ ] Economy [ ]...
  • Page 37 1-4. Error code table (Wireless LAN indicator) • Wireless LAN control system diagram example Indoor unit Internet Controller PCB Cloud Wireless Parts: Mobile app Outdoor unit WLAN adapter (Smart device) router • Name of parts WLAN adapter Wireless LAN label MAC: SSID: AP-WF PIN:...
  • Page 38 2. Troubleshooting with error code 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB When the indoor unit cannot receive the serial signal from outdoor unit more than 2 minutes after power on, Detective actuator...
  • Page 39 Check point 4. Check serial signal (Reverse transfer signal) Check serial signal (Reverse transfer signal) GREEN WHITE BLACK WHITE BLACK • Check if indicated value swings between AC 90 V and AC 270 V at the outdoor unit terminal 1 —3.
  • Page 40 2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) Operation indicator 1 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 11 Main PCB Indoor unit When the outdoor unit cannot properly receive the serial Detective actuator Fan motor signal from indoor unit for 10 seconds or more.
  • Page 41 Check point 4. Check serial signal (Forward transfer signal) Check serial signal (Forward transfer signal) GREEN WHITE BLACK WHITE BLACK • Check if indicated value swings between AC 30 V and AC 130 V at outdoor unit terminal 2—3. • If it is abnormal, replace main PCB.
  • Page 42 2-3. E: 32. Indoor unit main PCB error (Indoor unit) Operation indicator 3 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 32 When power is on and there is some below case. Detective actuator Indoor unit main PCB...
  • Page 43 2-4. E: 35. MANUAL AUTO button error (Indoor unit) Operation indicator 3 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 35 Indoor unit controller PCB When the MANUAL AUTO button becomes on for Detective actuator Indicator PCB consecutive 60 or more seconds.
  • Page 44 2-5. E: 41. Room temperature sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 41 Indoor unit main PCB Room temperature thermistor is open or short is Detective actuator detected always.
  • Page 45 2-6. E: 42. Indoor unit heat exchanger sensor error (Indoor unit) Operation indicator 4 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 42 Indoor unit main PCB When heat exchanger temperature thermistor open or Detective actuator Heat exchanger temperature short circuit is detected.
  • Page 46 2-7. E: 51. Indoor unit fan motor error (Indoor unit) Operation indicator 5 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 51 main PCB When the actual rotation number of the indoor unit fan Detective actuator Indoor unit motor is below 1/3 of the target rotation number...
  • Page 47 2-8. E: 62. Outdoor unit main PCB error (Outdoor unit) Operation indicator 6 time flash Timer indicator 2 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 62 Access to EEPROM failed due to some cause after Detective actuator Outdoor unit Main PCB...
  • Page 48 2-9. E: 64. PFC circuit error (Outdoor unit) Operation indicator 6 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 64 • When inverter input DC voltage is higher than 415 V for over 3 seconds, the compressor stops. Detective actuator Outdoor unit Main PCB...
  • Page 49 2-10. E: 65. IPM error (Outdoor unit) Operation indicator 6 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 65 Main PCB 1. When more than normal operating current to IPM in main PCB flows, the compressor stops.
  • Page 50 Check point 4. Check compressor Check compressor. (Refer to inverter compressor in "Service parts information".) ↓ Check point 5. Replace main PCB If Check point 1 to 4 do not improve the symptom, change main PCB. ↓ - (03-16) - 2-10.
  • Page 51 2-11. E: 71. Discharge thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 71 Outdoor unit main PCB When discharge pipe temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Discharge pipe temperature...
  • Page 52 2-12. E: 73. Outdoor unit heat exchanger thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 3 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 73 Outdoor unit main PCB When heat exchanger temperature thermistor open or Detective actuator short circuit is detected at power on or while running the Heat exchanger temperature...
  • Page 53 2-13. E: 74. Outdoor temperature thermistor error (Outdoor unit) Operation indicator 7 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 74 Outdoor unit main PCB When outdoor temperature thermistor open or short Detective actuator circuit is detected at power on or while running the Outdoor temperature thermistor...
  • Page 54 2-14. E: 84. Current sensor error (Outdoor unit) Operation indicator 8 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 84 When input current sensor has detected 0 A, while inverter compressor is operating at higher than 56 rps, Detective actuator Outdoor unit main PCB...
  • Page 55 2-15. E: 94. Trip detection (Outdoor unit) Operation indicator 9 time flash Timer indicator 4 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 94 Main PCB Protection stop by over-current generation after inverter compressor start processing completed generated consecutively 10 times.
  • Page 56 2-16. E: 95. Compressor motor control error (Outdoor unit) Operation indicator 9 time flash Timer indicator 5 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 95 Main PCB 1. When running the compressor, if the detected rotor location is out of phase with actual rotor location more than 90°, the compressor stops.
  • Page 57 2-17. E: 97. Outdoor unit fan motor error (Outdoor unit) Operation indicator 9 time flash Timer indicator 7 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 97 Main PCB 1. When outdoor fan rotation speed is less than 100 rpm in 20 seconds after fan motor starts, fan motor stops.
  • Page 58 2-18. E: 99. 4-way valve error (Outdoor unit) Operation indicator 9 time flash Timer indicator 9 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: 99 Indoor unit main PCB When the indoor heat exchanger temperature is compared with the room temperature, and either Heat exchanger temperature following condition is detected continuously two times,...
  • Page 59 Check point 3. Check the solenoid coil and 4-way valve • Solenoid coil Remove CN30 from PCB and check the resistance value of coil. Resistance value is about 1.88 kΩ ~ 2.29 kΩ. → If it is open or abnormal resistance value, replace solenoid coil. •...
  • Page 60 2-19. E: A1. Discharge temperature error (Outdoor unit) Operation indicator 10 time flash Timer indicator 1 time flash Indicator Indoor unit Economy indicator Continuous flash Error code E: A1 Outdoor unit main PCB Protection stop by discharge temperature ≥ 110 °C Detective actuator during compressor operation generated 2 times within Discharge temperature thermistor...
  • Page 61 Check point 5. Check the refrigerant amount Check the refrigerant leakage. ↓ Check point 6. Replace the main PCB If check point 1 to 5 do not improve the symptom, replace the main PCB. ↓ - (03-27) - 2-19. E: A1. Discharge temperature error (Outdoor unit) 2.
  • Page 62 3. Troubleshooting without error code 3-1. Indoor unit—No power Power supply failure Forecast of cause External cause 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 the installation manual or the “DESIGN & TECHNICAL MANUAL”.
  • Page 63 3-2. Outdoor unit—No power Power supply failure Forecast of cause External cause Electrical components defective Check point 1. Check installation condition • Is the circuit breaker on or off? • Check loose or removed connection cable. → If abnormal condition is found, correct it by referring to the installation manual or the “DESIGN & TECHNICAL MANUAL”.
  • Page 64 3-3. No operation (Power is on) Setting/ Connection failure Forecast of cause External cause Electrical components defective Check point 1. Check indoor and outdoor installation condition Are these indoor unit, outdoor unit, and remote controller suitable model numbers to connect? ->...
  • Page 65 3-4. No cooling/No heating Indoor unit error Outdoor unit error Forecast of cause Effect by surrounding environment Connection pipe/Connection wire failure Refrigeration cycle failure Check point 1. Check Indoor unit • Does Indoor unit fan run in the HIGH mode? •...
  • Page 66 NOTES: • Strainer normally does not have temperature difference between inlet and outlet as shown be- low. Pipe (In) Pipe (Out) • If there is a difference like shown below, there is a possibility of inside clogged. In this case, re- place the strainer.
  • Page 67 3-5. Abnormal noise Abnormal installation (indoor unit/outdoor unit) Forecast of cause Fan failure (indoor unit/outdoor unit) Compressor failure (outdoor) Diagnosis method when abnormal noise is occurred Abnormal noise is coming from Outdoor Abnormal noise is coming from Indoor unit. unit. (Check and correct followings) (Check and correct followings) ↓...
  • Page 68 3-6. Water leaking Erroneous installation Forecast of cause Drain hose failure Diagnosis method when water is spitting Diagnosis method when water leak occurs • Is main unit installed in stable condi- tion? Is the filter clogged? • Is main unit broken or deformed at the time of transportation or maintenance? ↓...
  • Page 69 4. Troubleshooting with error code (For wireless LAN adapter) 4-1. E: 18. External communication error between indoor unit and WLAN adapter Operation indicator 1 time flash Timer indicator 8 time flash Indoor unit Economy indicator Continuous flash Indicator Error code E: 18 LED1 (green) Flashing fast...
  • Page 70 4-2. Wireless LAN adapter error Operation indicator No indication Timer indicator No indication Indoor unit Economy indicator No indication Indicator Error code — LED1 (green) Flashing fast Wireless LAN adapter LED2 (orange) Flashing fast Wireless LAN adapter setting When the setting button becomes on for consecutive 60 button seconds or more.
  • Page 71 4-3. Network communication error between wireless LAN router and WLAN adapter Operation indicator No indication Timer indicator No indication Indoor unit Economy indicator No indication Indicator Error code — LED1 (green) Wireless LAN adapter LED2 (orange) Flashing fast Wireless LAN router When the not connection between wireless LAN adapter and wireless LAN router.
  • Page 72 Check point 4. Replace wireless LAN adapter. If check point 3 do not improve the symptom, replace the wireless LAN adapter and cancel the reg- istration of air conditioner on the mobile app. After replacing the adapter, perform the pairing on the mobile app. For the method of the mobile app, refer to "Mobile app setting method"...
  • Page 73 4-4. E: 18. Communication error Operation indicator 1 time flash Timer indicator 8 time flash Indoor unit Economy indicator Continuous flash Indicator Error code E: 18 LED1 (green) Flashing fast Wireless LAN adapter LED2 (orange) Flashing fast Wireless LAN router When the external communication error between indoor unit and WLAN adapter and network communication Wireless LAN adapter PCB...
  • Page 74 Check point 3-1. Turn on the power again of air conditioner. If check point 1 to 2 do not improve the symptom, turn on the power of the air conditioner again and wait for 60 seconds. -> When the flashing pattern of the LED 2 (orange) is on, go to "Check point 3-2".
  • Page 75 4-5. E: 18. Wireless LAN adapter non-energized Operation indicator 1 time flash Timer indicator 8 time flash Indoor unit Economy indicator Continuous flash Indicator Error code E: 18 LED1 (green) Wireless LAN adapter LED2 (orange) Indoor unit controller PCB When the voltage (DC 12 V) does not output from the Detective actuator controller PCB.
  • Page 76 4-6. Wireless LAN adapter Sleep mode (Indoor unit) Operation indicator No indication Timer indicator No indication Indoor unit Economy indicator No indication Indicator Error code — LED1 (green) Wireless LAN adapter LED2 (orange) When the state in which fly a wireless(SSID) have Detective actuator Sleep mode passed 1 hour.
  • Page 77 4-7. Mobile app setting method ¢ Air conditioner deregistration method When the wireless LAN adapter is replaced, deregistration of all air conditioner is necessary on the mobile app. Launch the mobile app. FGL air Press and hold the registered device name of the air conditioner. If the Unregister button is displayed, tap the button.
  • Page 78 ¢ Air conditioner registration pairing method Choose the following modes to connect the air conditioner to the wireless LAN router. NOTES: • Before starting this setting, wait for 60 seconds or more after the power supply is connected to the air conditioner (via breaker or plug). •...
  • Page 79 Confirm that the LED 2 blinks (on/off at 2 seconds intervals). Then press and hold the setting button on the WLAN Adapter for 3 seconds. on/off: 2 sec/2 sec on/off: 2 sec/0.5 sec The light pattern of the LED 2 changes. (On/off: 2 sec./2 sec. → 2 sec./0.5 sec.) Confirm both of the LED 1 and 2 are on to proceed.
  • Page 80  Manual mode (For Android) Launch the mobile app. FGL air Sign in with your e-mail address and password following the screen on the mobile app. [email protected] Sign in Press the + button to add a new air conditioner. Select manual mode. Button mode Manual mode If both of the LED 1 and 2 are off, push the setting button once.
  • Page 81  Manual mode (For iOS) Launch the mobile app. FGL air Sign in with your e-mail address and password following the screen on the mobile app. [email protected] Sign in Press the + button to add a new air conditioner. Select manual mode. Button mode Manual mode If both of the LED 1 and 2 are off, push the setting button once.

  • Page 82: Compressor

    5. Service parts information 5-1. Compressor Diagnosis method of compressor (If outdoor unit LED displays error, refer to troubleshooting) Does not start up Stops soon after starting up Abnormal noise ↓ ↓ ↓ Check if vibration noise by Is there open or loose con- Is there open or loose con- loose bolt or contact noise of nection cable?

  • Page 83: Inverter Compressor

    5-2. Inverter compressor ¢ Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA Check point 1. Check the terminal connection. • Check the following terminal connections of the compressor. (Loosening or incorrect wiring.) – R (U): Red – S (V): White – C (W): Black S (V) C (W) Main PCB...
  • Page 84 Check point 3. Replace the Inverter PCB. If check point 1 to 2 do not improve the symptom, replace the Inverter PCB. - (03-50) - 5-2. Inverter compressor 5. Service parts information...

  • Page 85: Outdoor Unit Electronic Expansion Valve (Eev)

    5-3. Outdoor unit Electronic Expansion Valve (EEV) ¢ Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA Check point 1. Check connections Check connection of connector. (Loose connector or open cable) NOTE: For details of wiring diagram, refer to "Wiring diagrams" in Chapter 2. TECHNICAL DATA AND PARTS LIST on page 02-13.
  • Page 86 Check point 6. Check strainer • Strainer normally does not have temperature difference between inlet and outlet as shown be- low. Pipe (In) Pipe (Out) • If there is a difference like shown below, there is a possibility of inside clogged. In this case, replace the strainer.

  • Page 87: Indoor Unit Fan Motor

    5-4. Indoor unit fan motor ¢ Models: ASHG07KPCE, ASHG09KPCE, and ASHG12KPCE 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.

  • Page 88: Outdoor Unit Fan Motor

    5-5. Outdoor unit fan motor ¢ Models: AOHG07KPCA, AOHG09KPCA, and AOHG12KPCA 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.

  • Page 89: Thermistor Resistance Values

    6. Thermistor resistance values 6-1. Indoor unit ¢ Room temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -10.0 58.25 0.73 -5.0 44.03 0.93 33.62 1.15 25.93 1.39 10.0 20.18 1.66 15.0 15.84 1.94 20.0 12.54 2.22 25.0 10.00 2.50 30.0 8.04 2.77 35.0...

  • Page 90: Outdoor Unit

    6-2. Outdoor unit ¢ Discharge temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 1,013.11 0.06 -25.0 729.09 0.09 -20.0 531.56 0.12 -15.0 392.31 0.16 -10.0 292.91 0.21 -5.0 221.09 0.28 168.60 0.36 129.84 0.46 10.0 100.91 0.57 15.0 79.12 0.71 20.0 62.55...
  • Page 91 ¢ Heat exchanger temperature thermistor Temperature (°C) Resistance (kΩ) Voltage (V) -30.0 95.58 0.24 -25.0 68.90 0.32 -20.0 50.31 0.43 -15.0 37.19 0.57 -10.0 27.81 0.73 -5.0 21.02 0.92 16.05 1.14 12.38 1.39 10.0 9.63 1.65 15.0 7.56 1.93 20.0 5.98 2.21 25.0...
  • Page 92 - (03-58) - 6-2. Outdoor unit 6. Thermistor resistance values...
  • Page 93 4. CONTROL AND FUNCTIONS 2022.07.07 SR_CH04_AS059EG_02...
  • Page 94 CONTENTS 4. CONTROL AND FUNCTIONS 1. Rotation number control of compressor...........04-1 1-1. Cooling operation ......................04-1 1-2. Heating operation ......................04-3 1-3. Dry operation ........................04-4 1-4. Rotation number of compressor at normal start-up ............04-4 1-5. Limitation of compressor rotation number by outdoor temperature.........04-5 2.

  • Page 95: Rotation Number Control Of Compressor

    1. Rotation number control of compressor 1-1. Cooling operation 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 rotation number of the compressor. •...
  • Page 96 • Limit of maximum speed based on outdoor temperature Outdoor temperature rises Outdoor temperature drops 36°C A zone 34°C 32°C B zone 30°C 21°C C zone 19°C 12°C D zone 10°C 2°C E zone 0°C F zone Unit: rps Indoor unit fan mode Outdoor Model name temperature zone...

  • Page 97: Heating Operation

    1-2. Heating operation A sensor (room temperature thermistor) built in indoor unit body will usually perceive difference or variation between setting temperature and present room temperature, and controls operation rota- tion number of compressor. • If the room temperature is 6.0 °C lower than a set temperature, the operation rotation number of compressor will attain to maximum performance.

  • Page 98: Dry Operation

    1-3. Dry operation The rotation number of compressor shall change according to the temperature, set temperature, and room temperature variation which the room temperature sensor of the indoor unit has detected as shown in the table below. Zone is defined by set temperature and room temperature. •...

  • Page 99: Limitation Of Compressor Rotation Number By Outdoor Temperature

    1-5. Limitation of compressor rotation number by outdoor temperature The minimum rotation number of compressor is limited by outdoor temperature as below. • Cooling/Dry mode F zone 38°C E zone 19°C D zone 10°C C zone 0°C B zone -10°C A zone Limitation of compressor Model name...

  • Page 100: Auto Changeover Operation

    2. Auto changeover operation When the air conditioner is set to AUTO mode by remote controller, operation starts in the optimum mode from among heating, cooling, dry and monitoring modes. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set be- tween 18°C and 30°C in 1.0°C steps.
  • Page 101 Operation flow chart Start Ts: Setting temperarure 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? Thermostat remains...

  • Page 102: Fan Control

    3. Fan control Tr: Room temperature Ts: Setting temperature 3-1. Indoor fan control ¢ Fan speed Indoor fan speed is defined as below. Speed (rpm) Operation mode Fan mode ASHG07KPCE ASHG12KPCE ASHG09KPCE POWERFUL 1,370 1,470 HIGH 1,300 1,400 MED+ 1,190 1,280 1,080 1,140...
  • Page 103 ¢ Cooling operation Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below. On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL operation modes QUIET, LOW, MED, HIGH as shown in “Fan speed” above. Airflow change over (Cooling: Auto) Tr - Ts ≥...
  • Page 104 ¢ Cool air prevention control (heating mode) The maximum value of the indoor fan speed is set as shown below, based on the detected tempera- ture by the indoor heat exchanger sensor on heating mode. • Normal operation Indoor heat exchanger temperature rises Indoor heat exchanger HIGH...
  • Page 105 • Powerful operation Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH 39°C 34°C 37°C 32°C Cool air prevention 30°C 28°C S-LOW 7 minutes later: Indoor heat exchanger temperature rises Indoor heat exchanger POWERFUL temperature drops 42°C 37°C HIGH...

  • Page 106: Outdoor Fan Control

    3-2. Outdoor fan control ¢ Outdoor fan motor This outdoor unit has a DC fan motor. (Control method is different between AC and DC motors.) ¢ Fan speed  Models: AOHG07KPCA and AOHG09KPCA Fan speed is defined by outdoor temperature and rotation number of the compressor. •...
  • Page 107  Model: AOHG12KPCA Fan speed is defined by outdoor temperature and rotation number of the compressor. • Outside air temperature zone selection Outside air Outside air temperature rises temperature drops Y zone 21°C 19°C Z zone 12°C 10°C F zone 2°C 0°C G zone...

  • Page 108: Louver Control

    4. Louver control 4-1. Vertical airflow direction louver control Each time the button is pressed, the air direction range will change as below: Side view • Remote controller display is not changed. • Vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

  • Page 109: Swing Operation

    4-3. Swing operation • To select vertical airflow swing operation When the swing signal is received, the vertical airflow direction louver starts to swing. – Swinging range • Cooling mode/dry mode/fan mode (1 to 3): 1 ↔ 4 • Heating mode/fan mode (4 to 6): 3 ↔ 6 –...

  • Page 110: Timer Operation Control

    5. Timer operation control 5-1. Wireless remote control On/Off timer Program timer Sleep timer Weekly timer ○ ○ ○ — ¢ On/Off timer • Off timer: When the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 111 ¢ Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. 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. •...

  • Page 112: Wired Remote Control

    5-2. Wired remote control Temperature set On/Off timer Program timer Sleep timer Weekly timer back timer ○ ○ ○ ○ ○ ¢ On/Off timer • Off timer: When the clock reaches the set timer, the air conditioner will be turned off. Operation mode Stop mode Set time of timer...
  • Page 113 ¢ Sleep timer If the sleep timer is set, the room temperature is monitored and the operation is stopped auto- matically. 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. •...
  • Page 114 ¢ Temperature set back timer • The SET BACK timer only changes the set temperature for 7 days, it cannot be used to start or stop air conditioner operation. • The SET BACK timer can be set to operate up to two times per day but only one temperature setting can be used.

  • Page 115: Defrost Operation Control

    6. Defrost operation control Tn: Outdoor unit heat exchanger temperature Ta: Outdoor temperature Tn10: Temperature at 10 minutes after compressor start Tnb: Temperature before 5 minutes Triggering condition • The defrost operation starts when outdoor unit heat exchanger temperature sensor detects the temperature lower than the values shown below.

  • Page 116: Defrost Operation In Heating Operation Stopped

    6-1. Defrost operation in heating operation stopped If the outdoor unit is frosted when stopping the heating operation, it stops after performing the auto- matic defrosting operation. In this time, if the indoor unit operation lamp flashes slowly (6 sec on/2 sec off), the outdoor unit al- low the heat exchanger to defrost, and then stop.

  • Page 117: Various Control

    7. Various control 7-1. Auto restart When the power was interrupted by a power failure etc. during operation, the operation contents at that time are memorized and when the power is recovered, operation is automatically started with the memorized operation contents. Operation contents memorized when the power is interrupted Operation mode Setting temperature...

  • Page 118: Forced Cooling Operation

    7-3. Forced cooling operation The outdoor unit may not operate depending on the room temperature. When FORCED COOLING OPERATION button is pressed more than 10 seconds, forced cooling operation starts as shown in the table below. Operation mode Cooling Fan mode HIGH Timer mode Continuous (no timer setting available)

  • Page 119: Fresh Air Control

    7-6. Fresh air control The fan motor for Fresh Air is operated in synchronization with the indoor fan operation as below. Operation Fan motor (Indoor unit) Stop Operation Fan motor (for Fresh Air) Stop 7-7. Compressor preheating By preheating the compressor, warm airflow is quickly discharged when the operation is started. •...

  • Page 120: 4-Way Valve Control

    7-10. 4-way valve control • If heating mode is selected at the compressor start, 4-way valve is energized for heating. • When the air conditioner is switched between cooling and heating mode, compressor is stopped, and the 4-way valve is switched when the 140 seconds passes and the compressor is started. - (04-26) - 7-10.

  • Page 121: Various Protections

    8. Various protections 8-1. Discharge gas temperature over-rise prevention control The discharge gas temperature sensor (discharge thermistor: outdoor unit side) detects the dis- charge gas temperature. • When the discharge temperature becomes higher than the trigger condition, the rotation number of compressor is decreased as the table below, and it continues to decrease until the discharge tem- perature becomes lower than the trigger condition.

  • Page 122: Current Release Control

    8-3. Current release control The rotation number of compressor is controlled so that the outdoor unit input current does not ex- ceeds current limit value set according to the outdoor temperature. The rotation number of compressor returns according to the operation mode, when the current be- comes lower than the release value.

  • Page 123: Low Outdoor Temperature Protection

    8-7. Low outdoor temperature protection When the outdoor temperature sensor detects lower than the trigger condition below, the compres- sor is stopped. Operation mode Cooling/Dry Trigger condition -15°C Release condition -10°C 8-8. High temperature and high pressure release control The compressor is controlled as follows. ¢...
  • Page 124 - (04-30) - 8-8. High temperature and high pressure release control 8. Various protections...
  • Page 125 5. FILED WORKING 2022.07.07 SR_CH05_AS059EG_02...
  • Page 126 CONTENTS 5. FILED WORKING 1. Function settings ..................05-1 1-1. Function settings by using remote controller ..............05-1 1-2. Custom code setting for wireless remote controller ............05-6...
  • Page 127 1. Function settings To adjust the functions of this product according to the installation environment, various types of function settings are available. NOTE: Incorrect settings can cause a product malfunction. 1-1. Function settings by using remote controller Some function settings can be changed on the remote controller. After confirming the setting proce- dure and the content of each function setting, select appropriate functions for your installation envi- ronment.
  • Page 128 STEP 2: Selecting the function number and setting value 1. Press the TEMP./SELECT ( ) buttons to select the function Function number number. To switch between the left and right digits, press the MODE button. 2. Press the FAN SPEED button to proceed the setting value. To re- turn the function number selection, press the FAN SPEED button again.
  • Page 129 ¢ Contents of function setting Each function setting listed in this section is adjustable in accordance with the installation environ- ment. NOTE: Setting will not be changed if invalid numbers or setting values are selected.  Function setting list Function no. Functions Filter sign 30/31...
  • Page 130 2) 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 of the room temperature sensor is corrected as follows: Corrected temp.
  • Page 131 5) 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. Function number Setting value Setting description Factory setting Disable Enable ♦...
  • Page 132 1-2. Custom code setting for wireless remote controller ¢ Custom code setting for wireless remote controller To interconnect the air conditioner and the wireless remote controller, assignment of the custom code for the wireless remote controller is required. NOTE: Air conditioner cannot receive a signal if the air conditioner has not been set for the custom code.

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