Fujitsu AOTG30KMTC, Руководство по обслуживанию

Страница: 82 / 199

2-30. E: 94. Over current error (Outdoor unit)
Indicator
Indoor unit
Operation indicator 9 time flash
Timer indicator 4 time flash
Economy indicator Continuous flash
Error code E: 94
outdoor unit
Refer to “Error code table (Outdoor unit: for 34 model
only)” on page 1
Detective actuator Outdoor unit
Main PCB Protection stop by over-current generation after inverter
compressor start processing completed generated
consecutively 10 times.
NOTE: The number of generations is reset when the
compressor starts up.
Compressor
Transistor PCB
Forecast of cause
Outdoor unit fan operation defective, foreign matter on
heat-exchanger, excessive rise of ambient temperature
Main PCB failure
Inverter compressor failure (lock, winding short)
Transistor PCB failure
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?
↓
Check point 2. Check transistor PCB
• Check transistor PCB (Refer to transistor PCB in "Service parts information" on page 03-75.)
→ If transistor PCB (IPM) is abnormal, replace transistor PCB.
↓
Check point 3. Replace main PCB
If Check point 1, 2 do not improve the symptom, change main PCB.
↓
Check point 4. Replace compressor
If Check point 3 do not improve the symptom, change compressor.
↓
End
2-30. E: 94. Over current error (Outdoor unit)
- (03-44) -
2. Troubleshooting with error code
TROUBLESHOOTING TROUBLESHOOTING