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HomeRepair HelpLitton Microwave RepairLitton Microwave producing a burning smell Repair
Litton Microwave producing a burning smell
If your Litton microwave smells like burning, stop using it until you identify the cause. The most likely problem is a damaged or loose waveguide cover that is arcing or burning inside the oven cavity. Replace the cover if it shows burn marks, cracks, or will not stay in place. If the waveguide cover is sound and the cavity is free of food debris, inspect the power supply board for burn marks or a shorted component. Next, a defective high-voltage capacitor, or capacitor, may overheat and create a burning smell. A damaged thermostat can also produce this symptom, especially if it shows discoloration or other visible damage. Finally, clean the interior cavity thoroughly because spilled or splattered food can continue cooking and smell burnt during each use. Any repair that requires opening the outer cabinet involves serious risk. The high-voltage capacitor can store a lethal charge even after the microwave is unplugged and must be properly discharged before interior work. Repairs involving the power supply board or high-voltage capacitor may require a qualified technician if you are not familiar with capacitor discharge procedures. Enter your Litton microwave model number to find the exact replacement waveguide cover, board, capacitor, or thermostat for your appliance.
01 - Litton 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 - Litton 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 - Litton 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 - Litton 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 - Litton 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 Litton microwave smell like burning plastic or wires?
Can a damaged waveguide cover cause a Litton microwave to spark or smell burnt?
What should I check if my Litton microwave still smells like burning after cleaning it?
How do I find the correct Litton microwave waveguide cover or capacitor?
Is it safe to use my Litton microwave when it has a burning smell?
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