Fault code 18 — AC voltage is abnormal

Was bedeutet 18 ?

The AC voltage supplied to the unit is outside the acceptable range (either too high or too low), or the voltage sampling circuit on the driver board is abnormal.

• The AC voltage>275V or <160V
• The AC voltage of sampling circuit on the driver board is abnormal

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the incoming power supply voltage.

2. 2

   Ensure the voltage is within the specified operating range (160V to 275V).

3. 3

   If the voltage is correct, the Main PCB may need replacement.