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HomeRepair HelpMontgomery Wards Microwave RepairMontgomery Wards Microwave exhaust fan not working Repair
Montgomery Wards Microwave exhaust fan not working
When your Montgomery Wards microwave exhaust fan is not working, the most likely cause is a defective door switch. The primary, secondary, or monitor door switch may not signal the control board that the door is closed, preventing the exhaust fan from operating. Test each switch for continuity and replace any switch that fails. Next, check the exhaust fan motor. Make sure the fan blades turn freely by hand, then test the motor for incoming power and continuity. A motor with power that will not run, or one without continuity, needs replacement. A defective thermostat can also keep the microwave fan from turning on, so test it for continuity. If the microwave vent is not pulling air, inspect the grille for clogs or damage and clean or replace it as needed. The control module is less commonly at fault, but it may need replacement if the motor is not receiving power after the wiring is checked. A defective micro switch can cause the same symptom. Enter your model number to find the exact replacement part for your Montgomery Wards microwave. Any repair requiring cabinet removal must be handled carefully because the high-voltage capacitor can store a lethal charge even when unplugged. Proper capacitor discharge is required, and a qualified technician may be necessary.
01 - Montgomery Wards Microwave Door Switch
A defective door switch may not signal the control board that the door is closed, which can prevent the button that controls the exhaust fan from functioning. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. If any of the door switches do not have continuity, the switch or switches should be replaced.
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02 - Montgomery Wards Microwave Exhaust Fan Motor
To determine if the fan motor is defective, remove the fan motor from the microwave and try turning the fan blades by hand. If the blades do not turn freely, replace the fan motor. If the fan blades do turn freely, use a multimeter to test the motor for incoming power and for continuity. If the motor has power but won’t run, replace it. If the motor does not have continuity, replace it.
Top Solution
03 - Montgomery Wards Microwave Thermostat
The thermostat monitors the air temperature and turns on the fan when necessary. If the thermostat is defective, it won’t turn on the exhaust fan at all. Use a multimeter to test the thermostat for continuity. If the thermostat does not have continuity, replace it.
Top Solution
04 - Montgomery Wards Microwave Grille
A damaged or clogged grille can prevent the air from being properly exhausted when the exhaust fan is turned on. Confirm the grille is free of obstruction and, if the grille is visibly damaged, replace the component with a new one.
Highly Likely
05 - Montgomery Wards Microwave Control Module
If the microwave exhaust fan is not working, the control module might be defective. However, this is not usually the case. Before replacing the control module, first check the exhaust fan motor and wiring. If the exhaust fan motor is not getting power, the control module might be at fault and require replacement.
Common
06 - Montgomery Wards Microwave Micro Switch
A defective micro switch may not signal the control board that the door is closed, which can prevent the button that controls the exhaust fan from functioning. To determine if any of the micro switches are defective, use a multimeter to test each of the switches for continuity. If any of the switches do not have continuity, the switch or switches should be replaced.
Common
Frequently Asked Questions
Why is my Montgomery Wards microwave exhaust fan not working?
How do I test a microwave fan motor when the microwave has power but the fan is not working?
Can a microwave door switch cause the exhaust fan not to work?
Why does my microwave exhaust fan still not work after checking the motor and switches?
How do I find the correct Montgomery Wards microwave exhaust fan part?
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