Error 18 — Compressor motor desynchronizing

What does [18] mean?

The compressor motor is out of sync. This can be caused by overload, fluctuating loads, issues with the current sensor circuit, or a missing inverter gate drive signal.

• The power supply is abnormal.
• The compressor wiring is incorrect.
• The power module is faulty.
• The compressor itself is faulty.
• The system is overloaded.

Click steps to track your progress.

1. 1

   Verify the power supply voltage is normal.

2. 2

   Ensure the wiring between the power module and compressor is correct.

3. 3

   Check if the power module is functioning normally.

4. 4

   Confirm the compressor is normal (check coil resistance and insulation).

5. 5

   If the compressor load is too high, find and resolve the reason.