Fujitsu ASUG09LZAS - 3. Troubleshooting

CONTENTS
3. TROUBLESHOOTING
1. Error code ....................................................................................................03-1
1-1. Error code table (Indoor unit and wired remote controller)..............................................03-1
1-2. Error code table (Wireless LAN indicator).......................................................................03-2
1-3. Error code table (Mobile app) .........................................................................................03-3
1-4. Error message for wireless LAN control (Mobile app).....................................................03-5
2. Troubleshooting with error code ...............................................................03-9
2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit).............03-9
2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit) .............03-11
2-3. E: 12. Wired remote controller communication error (Indoor unit) ................................03-13
2-4. E: 18. External communication error (Indoor unit) ........................................................03-14
2-5. E: 32. Indoor unit main PCB error (Indoor unit) ............................................................03-15
2-6. E: 35. MANUAL AUTO button error (Indoor unit)..........................................................03-16
2-7. E: 41. Room temperature sensor error (Indoor unit).....................................................03-17
2-8. E: 42. Indoor unit heat exchanger sensor error (Indoor unit) ........................................03-18
2-9. E: 51. Indoor unit fan motor error (Indoor unit) .............................................................03-19
2-10. E: 58. Intake grille error (Indoor unit) ..........................................................................03-20
2-11. E: 62. Outdoor unit main PCB error (Outdoor unit).....................................................03-21
2-12. E: 63. Inverter error (Outdoor unit)..............................................................................03-22
2-13. E: 64. PFC circuit error (Outdoor unit) ........................................................................03-23
2-14. E: 71. Discharge thermistor error (Outdoor unit).........................................................03-24
2-15. E: 73. Outdoor unit heat exchanger thermistor error (Outdoor unit)............................03-25
2-16. E: 74. Outdoor temperature thermistor error (Outdoor unit)........................................03-26
2-17. E: 84. Current sensor error (Outdoor unit) ..................................................................03-27
2-18. E: 94. Trip detection (Outdoor unit).............................................................................03-28
2-19. E: 95. Compressor motor control error (Outdoor unit) ................................................03-29
2-20. E: 97. Outdoor unit fan motor error (Outdoor unit)......................................................03-30
2-21. E: 99. 4-way valve error (Outdoor unit).......................................................................03-32
2-22. E: A1. Discharge temperature error (Outdoor unit).....................................................03-34
3. Troubleshooting without error code........................................................03-36
3-1. Indoor unit—No power..................................................................................................03-36
3-2. Outdoor unit—No power...............................................................................................03-37
3-3. No operation (Power is on)...........................................................................................03-38
3-4. No cooling/No heating ..................................................................................................03-39
3-5. Abnormal noise.............................................................................................................03-41
3-6. Water leaking................................................................................................................03-42
3-7. Too warm .....................................................................................................................03-43
3-8. Too cool........................................................................................................................03-47
4. Troubleshooting with error code (For wireless LAN adapter)...............03-51
4-1. E: 18. External communication error between indoor unit and WLAN adapter .............03-51
4-2. Wireless LAN adapter error ..........................................................................................03-52
4-3. Network communication error between wireless LAN router and WLAN adapter.........03-53