Over Current Error - Fujitsu AOYG45LAT8 User Manual

Trouble shooting 30
OUTDOOR UNIT Error Method:

Over Current Error

Detective Actuators:
Inverter PCB
Forecast of Cause :
1. Outdoor unit fan operation defective, foreign matter on hear exchanger, excessive rise of ambient
2. Inverter PCB failure
3. Inverter compressor failure (lock, winding short)
Check Point 1 : Check the outdoor unit fan operation, heat exchanger, ambient temperature
No obstructions in air passages?
Heat exchange fins clogged
Outdoor unit fan motor check
Ambient temperature not raised by the effect of other heat sources?
Discharged air not sucked in?
OK
Check Point 2 : Check the Inverter PCB
Inverter PCB check
OK
Check Point 3 : Replace the Inverter compressor
Inverter compressor replacement
Indicate or Display:
Outdoor Unit : E. 94. 1
Indoor Unit
Error Code
Detective details:
"Protection stop by "overcurrent generation after inverter compressor start
processing completed'''' generated consecutively 10 times.
* The number of generations is reset if the start-up of the compressor succeeds.
temperature
: Operation LED 9 times Flash, Timer LED 4 Times Flash,
Economy LED Continuous Flash.
: 94
02-46