Microwave automatic fan feature all over the range microwaves have an automatic fan feature to help protect the electronic components and also helps the cooking area get rid of excess heat.
Ge microwave vent fan stays on.
If you are cooking on the cooktop it can sense the heat and the fan won t turn off until the thermostat cools.
When it senses heat it turns on the exhaust fan.
Microwave model me21k7010ds fan turns itself on randomly random messages flash on the input screen turnable off turntable on press ok etc and beeping for no reason.
On several models of microwaves the thermostat is super sensitive causing the exhaust to run longer than needed.
If the exhaust fan on your over the range microwave does not appear to be working the problem may be with the fan motor.
The exhaust fan thermostat is usually the failed component.
I ve tried unplugging it temporarily but the issue keeps coming back.
Ge microwave combo oven unit stopped heating light not turning on and turntable not spinning.
When i plug the power back in the fan comes on and stays on whether the door is open or not.
Microwave has automatic fan ignition setting pre programmed to keep the unit components from over heating.
Replaced all 3 door switches and thermo fuse.