Fujitsu AUXB04GALH Service Manual page 132

Trouble shooting 54
OUTDOOR UNIT Error Method:
Trip Detection
Detective Actuators:
Inverter PCB
Inverter Compressor
SV 2 coil
Forecast of Cause :
1. Outdoor unit fan operation defective, foreign matter on hear exchanger, excessive rise of ambient
2. Inverter PCB defective
3. Inverter compressor defective (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 (Refer to "Service Parts Information 4" )
OK
Check Point 3 : Check the Inverter compressor
Check Inverter compressor
Indicate or Display:
E. 94.1
Outdoor Unit : E. 94. 1
Indoor Unit
Error Code
Detective details:
"Protection stop by "overcurrent generation after inverter compressor start
processing completed'''' generated consecutively 5 times.
* The number of generations is reset if protection stop is not generated again
within 40 seconds after restarting.
temperature
(Refer to "Service Parts Information 1,2" )
: Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
: 94
04-62