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15.2.18 F93 (Compressor Abnormal Revolution)
Malfunction Decision Conditions
A compressor rotation failure is detected by checking the compressor running condition through the position
detection circuit.
Malfunction Caused
Compressor terminal disconnect.
Outdoor PCB malfunction.
Abnormality Judgment:
4 times happen within 20 minutes.
Troubleshooting
For safety reason and to prevent component
breakdown, always switch off the power before
remove and connect the component.
Normal?
Yes
Turn off power supply.
Disconnect U, V, and W wires.
Check with inverter
checker.
- IPM defective
-Replace outdoor unit PCB
No
Replace compressor.
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