Fujitsu ASUG12LZAS Service Manual page 34

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
1-5. Error code table (Mobile App).........................................................................................03-4
1-6. Error message for wireless LAN control (Mobile App) ....................................................03-6
2. Troubleshooting with error code .............................................................03-10
2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit)...........03-10
2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) .............03-12
2-3. E: 12. Wired remote controller communication error (Indoor unit) ................................03-14
2-4. E: 18. External communication error (Indoor unit) ........................................................03-15
2-5. E: 32. Indoor unit main PCB error (Indoor unit) ............................................................03-16
2-6. E: 35. MANUAL AUTO button error (Indoor unit)..........................................................03-17
2-7. E: 41. Room temperature sensor error (Indoor unit) .....................................................03-18
2-8. E: 42. Indoor unit heat exchanger sensor error (Indoor unit) ........................................03-19
2-9. E: 51. Indoor unit fan motor error (Indoor unit) .............................................................03-20
2-10. E: 58. Intake grille error (Indoor unit) ..........................................................................03-21
2-11. E: 62. Outdoor unit main PCB error (Outdoor unit) .....................................................03-22
2-12. E: 63. Inverter error (Outdoor unit)..............................................................................03-23
2-13. E: 64. PFC circuit error (Outdoor unit) ........................................................................03-24
2-14. E: 65. IPM error (Outdoor unit) ...................................................................................03-25
2-15. E: 71. Discharge thermistor error (Outdoor unit).........................................................03-27
2-16. E: 72. Compressor thermistor error (Outdoor unit) .....................................................03-28
2-17. E: 73. Outdoor unit heat exchanger thermistor error (Outdoor unit)............................03-29
2-18. E: 74. Outdoor temperature thermistor error (Outdoor unit)........................................03-30
2-19. E: 84. Current sensor error (Outdoor unit) ..................................................................03-31
2-20. E: 94. Trip detection (Outdoor unit).............................................................................03-32
2-21. E: 95. Compressor motor control error (Outdoor unit) ................................................03-33
2-22. E: 97. Outdoor unit fan motor error (Outdoor unit) ......................................................03-34
2-23. E: 99. 4-way valve error (Outdoor unit).......................................................................03-35
2-24. E: A1. Discharge temperature error (Outdoor unit) .....................................................03-37
2-25. E: A3. Compressor temperature error (Outdoor unit)..................................................03-39
3. Troubleshooting without error code........................................................03-41
3-1. Indoor unit-No power..................................................................................................03-41
3-2. Outdoor unit-No power...............................................................................................03-42
3-3. No operation (Power is on) ...........................................................................................03-43
3-4. No cooling/No heating ..................................................................................................03-44
3-5. Abnormal noise.............................................................................................................03-46
3-6. Water leaking................................................................................................................03-47
3-7. Too warm .....................................................................................................................03-48
3-8. Too cool........................................................................................................................03-52
CONTENTS
3. TROUBLESHOOTING