Brand : Fujitsu VRF
model : AJY126LALBH (main CU)
model : AJY072LALBH (slave 1 CU)
1)error code E9U2 (main CU)
2)error code E931 (slave 1 CU)
Suspect error ;
1) E9U2 - outdoor slave unit error, error signal received from slave unit of same
refrigerant system.
2)E931 - outdoor unit inverter compressor start up problem.
- Inverter PCB to inverter compressor wiring disconnection, open
- inverter PCB detective
- inverter compressor detective (lock, winding short.
#Fujitsu #VRF #bonmj
Негізгі бет VRF |How to rectify error code E9U2 & E931| Fujitsu
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