TROUBLESHOOTING
100
Situation 4: L0 error is displayed after the compressor has been in operation for a period
of time and the compressor speed is over 60 rps
L0
↓
Inverter module has overheated
YES →
Repaint a layer of thermally conductive silica gel on
the PFC and IPM modules, diode (on the reverse
side of the inverter module PCB) (1)
NO
↓
Inverter module is over-current (2)
YES
→
Replace the compressor
NO
↓
Replace the inverter module (3)
Notes:
1. When replacing an inverter module, a layer of thermally conductive silica gel should be painted on the IPM
module (on the reverse side of the inverter module PCB).
2. Use clip-on ammeter to measure the compressor current, If the current is normal it indicates that the inverter
module has failed, if it is abnormal, it indicates that the compressor is faulty.
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