On several models of microwaves the thermostat is super sensitive causing the exhaust to run longer than needed.
Ge microwave vent fan stays on.
When i plug the power back in the fan comes on and stays on whether the door is open or not.
Ge microwave combo oven unit stopped heating light not turning on and turntable not spinning.
Microwave has automatic fan ignition setting pre programmed to keep the unit components from over heating.
The exhaust fan thermostat is usually the failed component.
Replaced all 3 door switches and thermo fuse.
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.
I ve tried unplugging it temporarily but the issue keeps coming back.
When it senses heat it turns on the exhaust fan.
The fan motor is located at the top rear of the microwave and exhausts the air into the duct system or re circulates into the room through the charcoal filter depending on the installation.
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.
What is the solution.