The inverter controls the compressor's frequency and power. An inverter fault may be related to power supply, overcurrent, temperature, or a power issue.
Error code
The exact code is essential because each manufacturer categorizes overcurrent, overvoltage, overheating, and communication faults differently.
Basic checks
Power supply, DC bus, compressor connections, inverter module temperature, and alarm history.
Safety
Inverter checks should only be performed by a qualified technician due to high DC voltages.