TROUBLESHOOTING
96
Situation 2: L0 error is displayed immediately after compressor startup
L0
↓
DC bus wire is connected properly (1)
YES
→
Ensure the wire is connected properly
NO
↓
Compressor has malfunctioned (2)
YES
→
Replace the compressor
NO
↓
Replace main PCB
Notes:
1 The DC bus wire must run from N terminal on the inverter module, through the current sensor (indicated by
the arrow on the current sensor) and end at N terminal on the capacitor.
2 The normal resistances of the inverter compressor are 0.7-1.5Ω among U V W and infinite between each
of U V W and grounding. If any of the resistances dier from these specifications, the compressor has
malfunctioned.
Sizes 6.1-8.1
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