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Whirlpool Microwave Exhaust Fan Not Working

MH3184XPY1

The 4 most common part(s) or condition(s) which contribute to the symptom Microwave exhaust fan not working are listed below. Check or test each item and watch any available videos. If you are still unable to solve the problem you may need to do additional research and troubleshooting. Remember, with our 365 Days. Period.® return policy you can return any part for any reason. So, go ahead and buy it to try it. No other parts retailer offers this unconditional return policy.

For the symptom you selected, these are the most common parts or causes, ordered by the likelihood of fixing the symptom.

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Exhaust Fan Motor - Part # 1394041 Mfg Part # W10117942

Exhaust Fan Motor

RepairClinic Item # 1394041

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.

Grid is 1 inch square
Thermostat - Part # 903788 Mfg Part # 8183703

Thermostat

RepairClinic Item # 903788

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.

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$25.90

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Thermostat - Part # 1059655 Mfg Part # 8184951

Thermostat

RepairClinic Item # 1059655

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.

Grid is 1 inch square
Main Control Board - Part # 1482533 Mfg Part # W10233386

Main Control Board

RepairClinic Item # 1482533

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.

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