Error 18 — Compressor motor desynchronizing

What does 18 mean?

The compressor motor has desynchronized. This can be caused by overload, fluctuating load, an abnormal compressor current sensor circuit, or a missing inverter gate drive signal.

• The power supply is abnormal
• Incorrect compressor wiring
• The power module is bad
• The compressor is bad
• The system is overloaded

Click steps to track your progress.

1. 1

   Check for correct power supply and if the supply voltage is normal.

2. 2

   Ensure wire connection between the power module and compressor is correct.

3. 3

   Check if the compressor is normal (coil resistor, insulation).

4. 4

   If the power module is normal, proceed to check other components. If not, replace it.

5. 5

   Address any compressor load issues.