Fault

W22

Internal fan alarm.

1 Devices that report this code
T-REX-50KHP3G01Inverter↗ view on device
W22Internal fan alarm.Fault
Description

Internal fan stops working abnormally, check internal fan wiring.

Source:T-REX-50KHP3G01-user-manual-.pdf · page 45

Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.