TROUBLESHOOTING
98
Situation 3: L0 error is displayed within 2 seconds of compressor startup
L0
↓
U V W wire between inverter module and
compressor is not connected properly (1)
YES
→
Ensure U V W wire is connected properly
NO
↓
The communication port for connection to the
inverter module on the refrigerant circuit board is
damaged (2)
YES
→
Replace main PCB
NO
↓
Replace main PCB
Notes:
1. Connect the U V W wire from the inverter module to the correct compressor terminals, as indicated by the
labels on the compressor
2. Measure the voltage between W-, W+, V-, V+, U-, U+ and GND when the unit is in standby. The normal voltage
should be 2.5 V-4 V and the six voltages should be the same, otherwise the communication terminal is faulty.
Inverter module connection port
Sizes 6.1-8.1
To Next Page
Loading...
Need help?
General