Microwave incandescent  light bulb, 40 Watt. * Special Note* Manufacture recommends unplugging microwave prior to replacing light bulb.

Light Bulb

Grease Filter

Charcoal filter. Measures approximately 5 1/2" x 5"

Charcoal Filter

Glass Tray

Dryer door switch assembly. If the dryer does not start then the door switch could be defective. This switch also replaces the two wire switch.

Door Switch

Glass Tray Support

Aluminum exterior grille, 25-3/4 X 15-1/2 inches

Vent Grille

Protect internal parts with this genuine OEM waveguide cover, part number 5304523276, for select Frigidaire Microwaves.

Waveguide Cover

Halogen G9 Light Bulb, 120 Volts 40 Watts 60 HZ

Halogen Lamp

Door Handle

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Microwave not heating

If the microwave overheats, the thermostat trips to cut off voltage to the microwave. If the thermostat is shorted open, it may not allow voltage to reach the high voltage components. To determine if the thermostat is at fault, use a multimeter to test it for electrical continuity. If the thermostat does not have continuity, and it cannot be reset, replace it.

Microwave not working

Microwave shuts off after a few seconds

If the microwave runs for a few seconds and stops the thermostat might be defective. Watch our video on testing thermostats.

Microwave exhaust fan not working

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.

Microwave producing a burning smell

If you've confirmed the oven cavity has been cleaned of all food debris and the waveguide cover is in good condition, a defective thermostat could be one of the components producing a burning smell. You should inspect the component for any burn marks or damage and replace if necessary.

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Microwave exhaust fan not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Exhaust Fan Not Working — Microwave Oven Troubleshooting

Microwave not heating? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Is Not Heating — Microwave Oven Troubleshooting

Microwave not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Is Not Working — Microwave Oven Troubleshooting

Is your microwave sparking or arcing? This video can help you discover the cause.

What Causes a Microwave to Spark and Arc?

Microwave shuts off after a few seconds? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Shuts Off After A Few Seconds — Microwave Troubleshooting

Microwave sparking or arcing? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Sparking/Arcing — Microwave Troubleshooting

Microwave display not working? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Display Not Working — Microwave Troubleshooting

Microwave turns on by itself? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Turns On By Itself — Microwave Troubleshooting

Microwave door won't open? This video provides information on how to troubleshoot a microwave and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Microwave Door Won't Open — Microwave Troubleshooting

This video is a compilation of 5 different tips to help maintain and make sure your microwave is performing and working efficiently. Don't forget to like and comment on this video and subscribe to our channel!

5 Tips For Your Microwave - Tech Tips from Repair Clinic

This video recommends that viewers use steam from microwaved water to help clean the appliance. Don't forget to like and comment on this video and subscribe to our channel!

Boil Water in Your Microwave - Tech Tips from Repair Clinic

This video reminds viewers to replace the charcoal filter in their microwave. Don't forget to like and comment on this video and subscribe to our channel!

Replace Microwave Charcoal Filter - Tech Tips from Repair Clinic

This video recommends that viewers use a putty knife to remove microwave trim. Don't forget to like and comment on this video and subscribe to our channel!

Removing Microwave Trim - Tech Tips from Repair Clinic

Microwave turntable not turning? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Turntable Not Turning — Microwave Oven Troubleshooting

Microwave loud/noisy? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Is Loud or Noisy  — Microwave Oven Troubleshooting

Microwave buttons not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Buttons Not Working — Microwave Oven Troubleshooting

Microwave light bulb not working? This video provides information on how to troubleshoot a microwave oven and the most likely defective parts associated with this problem. Commonly replaced microwave parts: Turntable Motor Touchpad Control Board Magnetron Diode Transformer Fan Motor

Top Reasons Microwave Light Bulb Isn't Working  — Microwave Oven Troubleshooting

Kenmore 503553 Microwave Thermostat | Repair Clinic

Kenmore Microwave Thermostat 503553

This part 503553 is compatible with:

Related Articles & Videos

Thermostat Customer Reviews

Common Problems Fixed by the Thermostat

Microwave exhaust fan not working

Microwave not heating

Microwave not working

Microwave producing a burning smell

Microwave shuts off after a few seconds

About the Thermostat

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