E: 63. Inverter Error (Outdoor Unit) - Fujitsu ACUH09LUAS1 Service Manual

2-18. E: 63. Inverter error (Outdoor unit)

→ired remote
Indicator
controller
Detective actuator Outdoor unit
Forecast of cause
Check point 1. Turn the power on again?
Error displayed again?
Check point 2. Check the wiring (power supply to inverter PCB)
• Connector and wiring connection state check
• Cable open check
Check point 3. Replace inverter PCB
Replace inverter PCB
Check point 1-2. Check external cause
• Check if temporary voltage drop was not generated.
• Check if momentary open was not generated.
• Check if ground is connection correctly or there are no related cables near the power line.
2-18. E: 63. Inverter error (Outdoor unit)
Error code
Inverter PCB
End
End
Error information received from inverter PCB
External cause
Power supply to inverter PCB wiring disconnection or
Inverter PCB failure
If no, go to "Check point
- (03-22) -
E: 63
open
1-2".
2. Troubleshooting with error code