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Microwave Exhaust Fan Not Working

The 3 most common part(s) or condition(s) which cause the symptom Microwave exhaust fan not working are listed below starting with the most likely. Check or test each item and watch any available videos.


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To see parts for your microwave, you need to enter your model number on the right. The system will then display parts that are associated with your microwave.

Exhaust Fan Motor

If the exhaust fan does not run the fan motor might be bad. Remove the fan motor from the microwave oven and see if the blades can be turned by hand. They should turn very freely, if they're stiff the fan motor will need to be replaced. The fan motor can also burn out. To test this use an Ohm meter. The motor should have continuity. If it doesn't, replace it.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

To see parts for your microwave, you need to enter your model number on the right. The system will then display parts that are associated with your microwave.

Thermostat

If the microwave exhaust fan is not working the thermostat might be defective. The thermostat senses the air temperature and turns on the fan as needed, if it's defective it won't turn on the fan. Watch our video on testing thermostats.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

To see parts for your microwave, you need to enter your model number on the right. The system will then display parts that are associated with your microwave.

Main Control Board

If the microwave exhaust fan is not working check the exhaust fan motor and wiring. If they are good the main control board might be defective.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

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