Error 20 — DC voltage or AC voltage low

¿Qué significa 20 ?

Low voltage has been detected by the compressor drive module. This could be due to a low AC input voltage or a low DC bus voltage.

• Low AC voltage
• Low DC BUS voltage

Haga clic en los pasos para seguir su progreso.

1. 1

   Check the incoming AC voltage to the unit.

2. 2

   Measure the DC BUS voltage.

3. 3

   Inspect wiring connections for the power supply.