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HomeRepair HelpMaytag Microwave RepairMaytag Microwave producing a burning smell Repair
Maytag Microwave producing a burning smell
When your Maytag microwave smells like burning, stop using it and inspect the waveguide cover first. A damaged or loose waveguide cover can arc against the microwave cavity and create a burning smell, so replace it if it is scorched, cracked, or will not stay in place. If the cover is sound and the cavity is clean, the power supply board may have a burned component or visible burn marks. A defective high-voltage capacitor, also called a capacitor, can overheat while working with the high-voltage diode and produce a burning odor. A damaged thermostat may also show burn marks and cause the same problem. Finally, check for food debris or splattered grease inside the cavity, since leftover food can continue cooking and smell burnt whenever the microwave runs. Any repair that requires removing the outer cabinet involves serious shock risk. The high-voltage capacitor can store a lethal charge even after the microwave is unplugged and must be properly discharged before interior work. If you are not familiar with capacitor discharge procedures, have a qualified technician handle the repair. Enter your Maytag microwave model number to find the exact replacement waveguide cover, power supply board, capacitor, or thermostat for your appliance.
01 - Maytag Microwave Waveguide Cover
The waveguide cover might be damaged and arcing or burning. If this is the case or if the cover will not stay in place, replace it with a new one.
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02 - Maytag Microwave Power Supply Board
If you've confirmed the oven cavity has been cleaned of all food debris and the waveguide cover is in good condition, a defective power supply board could be one of the components producing a burning smell. You should inspect the board for any burn marks or a shorted component and replace if necessary.
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03 - Maytag Microwave High Voltage Capacitor
The high voltage capacitor works with the high voltage diode to convert the output of the transformer to DC voltage and to double the output voltage. A defective capacitor may overheat and produce a burning smell. Inspect the capacitor for visible damage or burn marks and replace if necessary.
Highly Likely
04 - Maytag Microwave Capacitor
The capacitor works with the high voltage diode to convert the output of the transformer to DC voltage and to double the output voltage. A defective capacitor may overheat and produce a burning smell. Inspect the capacitor for visible damage or burn marks and replace if necessary.
Highly Likely
05 - Maytag Microwave Thermostat
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.
Highly Likely
06 - Interior Cavity not Clean
Food that is left on the interior of the microwave can continue to cook each time the microwave is used, resulting in a burning smell. Always cover food when cooking to avoid splatter and wipe up any spills after use.
Highly Likely
Frequently Asked Questions
Why does my Maytag microwave smell like burning?
Can a waveguide cover cause microwave sparking and a burning smell?
What parts can cause a Maytag microwave burning smell after the waveguide cover is checked?
How do I safely test a microwave capacitor or thermostat?
How do I find the correct Maytag microwave waveguide cover or other replacement part?
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