H38 displayed; unit may not start or may run with reduced performance.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Faulty inverter compressor, Loose compressor connector, Faulty outdoor inverter PCB, Incorrect power supply phase (for 3-phase units)

Warning: This involves high-voltage inverter circuits. Only qualified personnel should perform detailed diagnostics.

Basic checks:

1. Power off: Turn off all power and wait at least 10 minutes.
2. Inspect compressor wiring: Ensure the multi-pin compressor connector is fully seated and not burnt.
3. Check for vibration/noise: When previously running, unusual compressor noise may indicate internal damage.

If H38 persists, a technician must test compressor windings and inverter PCB and replace the defective component.

Professional Required 5/5

Inverter Compressor

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