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HomeRepair HelpModern Maid Microwave RepairModern Maid Microwave exhaust fan not working Repair
Modern Maid Microwave exhaust fan not working
Is your Modern Maid microwave exhaust fan not working? Start with the door switch, the most likely cause. A defective door switch or micro switch may fail to tell the control board that the door is closed, preventing the exhaust fan from turning on. Test each switch for continuity and replace any switch that fails. Next, check the exhaust fan motor. The blades should turn freely by hand; if they do not, replace the motor. If they turn freely, test the motor for incoming power and continuity. A defective thermostat can also keep the fan from running because it monitors air temperature and activates the fan when needed. Then inspect the grille for clogs or damage, since a blocked grille can make the microwave vent not work properly or stop pulling air. If the motor is not receiving power, the control module may be faulty, although it is less common than the other causes. Enter your model number to find the exact replacement part for your Modern Maid microwave. Any repair that requires opening the outer cabinet must be handled carefully because the high-voltage capacitor can store a lethal charge even after the microwave is unplugged. Discharge it properly before interior work, or hire a qualified technician if you are not familiar with the procedure.
01 - Modern Maid 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 - Modern Maid 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 - Modern Maid 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 - Modern Maid 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 - Modern Maid 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 - Modern Maid 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 Modern Maid microwave exhaust fan not working?
How do I test a Modern Maid microwave fan motor and door switch?
Could the thermostat or grille cause my microwave fan not to work or stop pulling air?
How do I find the correct Modern Maid microwave exhaust fan part?
Is it safe to repair a Modern Maid microwave that has a burning smell, sparks, or a tripped breaker?
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