Continous Fan Run


Basic Issue

  • Check Fan and then Temperature sensor or thermostat and its resistor and diode connected with fan print. If every thing is ok then check the controller IC (28 pin)

Luminous Ecowatt+ 650

Problem continuous fan run on switch on + overload and Low battery issue
Fault PCB Board fell down and thermostat pin shorted with the nearby print on the PCB.
Solution First checked the mosfet, found OK. > Next traced the thermostat because the fan was running continuously, thermostat is ok. > Next checked the backside of the thermostat and found one pin of the thermostat pin shorted with the nearby print on the PCB. Removed the shorted pin and the inverter started successfully. Video.
Parts used no parts used