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HomeRepair HelpSanyo Microwave RepairSanyo Microwave exhaust fan not working Repair
Sanyo Microwave exhaust fan not working
If your Sanyo microwave exhaust fan is not working, start with the door switch, which may fail to signal the control board that the door is closed. Test the door switch, also called a micro switch or interlock switch, for continuity and replace it if defective. Next, check the exhaust fan motor. The fan blades should turn freely by hand; if they do not, or if the motor has power but will not run, replace the motor. A defective thermostat can also prevent the fan from turning on, so test it for continuity. Inspect the grille for clogs or damage that could restrict airflow, then check the wiring and control module. The control module is less common, but it may be at fault if the motor is not receiving power. Enter your model number to find the exact Sanyo replacement part for your microwave. If the repair requires removing the outer cabinet, unplug the microwave first and use caution: the high-voltage capacitor can store a lethal charge even after unplugging and must be properly discharged before interior work. If you are not familiar with capacitor discharge procedures, have a qualified technician perform the repair.
01 - Sanyo 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 - Sanyo 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 - Sanyo 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 - Sanyo 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 - Sanyo 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 - Sanyo 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 Sanyo microwave exhaust fan not working?
How do I test a Sanyo microwave exhaust fan motor?
Can a microwave door switch stop the exhaust fan from working?
What should I check if my Sanyo microwave exhaust fan is weak or not pulling air?
How do I find the correct Sanyo microwave exhaust fan part?
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