EG4 › inverter control board and firmware
One fan runs full speed despite low settings
reported in the field
Symptoms
- One of four fans on a slave 12000XP screams continuously at high speed while the inverter's other three fans and the master's four fans stay off or low
- Lowering the fan speed setting remotely has no effect, and the constant fan draws down battery capacity
The cause and the fix
Subscribers see the cause, the fixes that worked and who did them, part numbers and recent prices when a part is involved, and the field reports behind this entry.