Fujitsu AUXB04GALH Service Manual page 115

Trouble shooting 37
OUTDOOR UNIT Error Method:
Inverter Error
Detective Actuators:
Inverter PCB
Forecast of Cause : 1. Noise, momentary open, voltage drop. 2. Power supply to Inverter PCB
wiring disconnection, open 3. Inverter PCB defective
Check Point 1-1 : Turn the power
on again.
Error displayed again?
YES
Check Point 2 : Check the wiring (Power supply to Inverter PCB)
Connector and wiring connection state check
Cable open check
OK
Check Point 3 : Check Inverter PCB
Check Inverter PCB.
(Refer to Parts information 3, 4)
E. 63.1
Indicate or Display:
Outdoor Unit : E. 63. 1
Indoor Unit
Error Code
Detective details:
Error information received from Inverter PCB
Check Point 1-2 : Noise, momentary open, voltage drop
NO
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.
: Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
: 63
04-45