Trouble shooting 17
OUTDOOR UNIT Error Method:
Over Current Error
OK
OK
Test 3 : Replace Main PCB
Outdoor unit Main PCB
Compressor
Transistor PCB
If Test 1,2 do not improve the symptom, change Main PCB.
Test 2 : Check Transistor PCB (IPM)
>> If IPM is abnormal, replace Transistor PCB.
OK
Test 4 : Replace Compressor
If Test 3 do not improve the symptom, change Compressor.
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
"Protection stop by over current 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.
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?
Test 1 : Check the outdoor unit fan operation, heat exchanger, ambient temperature
Check IPM. (SERVICE PARTS INFORMATION 7)
02-19
Indicate or Display:
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 9 times Flash, Timer lamp: 4 times Flash
Economy lamp: Continuous flash.
ERROR CODE : [E : 94]
Detective Actuators: Detective details:
Forecast of Cause:
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