Fujitsu ASG30LMTA Service Instruction page 63

Trouble shooting 27
OUTDOOR UNIT Error Method:
Over Current Error
Detective Actuators:
Outdoor unit Main PCB
Compressor
Transistor PCB (IPM)
Forecast of Cause :
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 OK
Check Point 2: Check Transistor PCB (IPM)
Check IPM. (PARTS INFORMATION 7)
>> If IPM is abnormal, replace Transistor PCB.
OK OK
Check Point 3: Replace Main PCB
If Check Point 1 or 1,2 do not improve the symptom, change Main PCB.
OK OK
Check Point 4: Replace Compressor
If Check Point 3 do not improve the symptom, change Compressor.
AMP Air Conditioning
Indicate or Display:
Indoor Unit :
Operation lamp: 9 times Flash,
Timer lamp
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.
1. Outdoor unit fan operation defective, foreign matter on hear exchanger,
excessive rise of ambient temperature
2. Main PCB
3. Inverter compressor failure (lock, winding short)
4. Transistor PCB (IPM) failure
Wired Remote Controller :
ERROR CODE : [E : 94]
: 4 times Flash
02-30
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