Fujitsu General AOHH30KMTB, Service Manual

Page: 62 / 162

2-21. E: 95. Compressor motor control error (Outdoor unit)
Indicator
Indoor unit
Operation indicator 9 time flash
Timer indicator 5 time flash
Economy indicator Continuous flash
Error code E: 95
outdoor unit Refer to "Error code table (Outdoor unit)" on page 03-3
Detective actuator Outdoor unit
Inverter PCB 1. When running the compressor, if the detected rotor
location is out of phase with actual rotor location
more than 105°, the compressor stops.
2. After the compressor restarts, if the same operation
is repeated within 40 seconds, the compressor
stops again.
3. If 1. and 2. repeats 5 times, the compressor stops
permanently.
Main PCB
Compressor
Forecast of cause
Defective connection of electrical components
Inverter PCB failure
Main PCB failure
Compressor failure
Check point 1. Check noise from compressor
Turn on power and check operation noise.
→ If an abnormal noise show, replace compres-
sor.
↓
Check point 2. Check connection of around the compressor components
For compressor terminal, main PCB
• Check if connector is removed.
• Check erroneous connection.
• Check if cable is open. (Refer to inverter compressor in "Service parts information" on page 03-
41.)
→ Upon correcting the removed connector or mis-wiring, reset the power.
↓
Check point 3. Replace inverter PCB
If Check point 1, 2 do not improve the symptom, change inverter PCB.
↓
Check point 4. Replace main PCB
If Check point 1 to 3 do not improve the symptom, change main PCB.
↓
Check point 5. Replace compressor
If Check point 4 do not improve the symptom, change compressor.
↓
End
2-21. E: 95. Compressor motor control error (Outdoor unit)
- (03-26) -
2. Troubleshooting with error code
TROUBLESHOOTING TROUBLESHOOTING