Fujitsu ASUH12LPAS Service Manual

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
2. Troubleshooting with error code ...............................................................03-3
2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit).............03-3
2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) ...............03-5
2-3. E: 12. Wired remote controller communication error (Indoor unit) ..................................03-7
2-4. E: 18. External communication error (Indoor unit) ..........................................................03-8
2-5. E: 32. Indoor unit main PCB error (Indoor unit) ..............................................................03-9
2-6. E: 35. MANUAL AUTO button error (Indoor unit)..........................................................03-10
2-7. E: 41. Room temperature sensor error (Indoor unit).....................................................03-11
2-8. E: 42. Indoor unit heat exchanger sensor error (Indoor unit) ........................................03-12
2-9. E: 51. Indoor unit fan motor error (Indoor unit) .............................................................03-13
2-10. E: 62. Outdoor unit main PCB error (Outdoor unit).....................................................03-14
2-11. E: 64. PFC circuit error (Outdoor unit) ........................................................................03-15
2-12. E: 65. IPM error (Outdoor unit) ...................................................................................03-16
2-13. E: 71. Discharge thermistor error (Outdoor unit).........................................................03-18
2-14. E: 73. Outdoor unit heat exchanger thermistor error (Outdoor unit)............................03-19
2-15. E: 74. Outdoor temperature thermistor error (Outdoor unit)........................................03-20
2-16. E: 84. Current sensor error (Outdoor unit) ..................................................................03-21
2-17. E: 94. Trip detection (Outdoor unit).............................................................................03-22
2-18. E: 95. Compressor motor control error (Outdoor unit) ................................................03-23
2-19. E: 97. Outdoor unit fan motor error (Outdoor unit)......................................................03-24
2-20. E: 99. 4-way valve error (Outdoor unit).......................................................................03-25
2-21. E: A1. Discharge temperature error (Outdoor unit).....................................................03-27
3. Troubleshooting without error code........................................................03-29
3-1. Indoor unit—No power..................................................................................................03-29
3-2. Outdoor unit—No power...............................................................................................03-30
3-3. No operation (Power is on)...........................................................................................03-31
3-4. No cooling/No heating ..................................................................................................03-32
3-5. Abnormal noise.............................................................................................................03-34
3-6. Water leaking................................................................................................................03-35
4. Service parts information .........................................................................03-36
4-1. Compressor..................................................................................................................03-36
4-2. Inverter compressor......................................................................................................03-37
4-3. Outdoor unit Electronic Expansion Valve (EEV) ...........................................................03-38
4-4. Indoor unit fan motor ....................................................................................................03-40
4-5. Outdoor unit fan motor..................................................................................................03-41
5. Thermistor resistance values...................................................................03-42
5-1. Indoor unit ....................................................................................................................03-42

Fujitsu ASUH12LPAS Specifications

General

Brand	Fujitsu
Model	ASUH12LPAS
Category	Air Conditioner
Language	English