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HomeRepair HelpMontgomery Wards Microwave RepairMontgomery Wards Microwave producing a burning smell Repair
Montgomery Wards Microwave producing a burning smell
When your Montgomery Wards microwave smells like burning, stop using it until you identify the source. A damaged or loose waveguide cover is the most likely cause because it can arc or burn, especially when grease or food debris is present. Next, inspect the power supply board for burn marks or a shorted component. A failing high-voltage capacitor or capacitor can overheat while working with the high-voltage diode and transformer, producing a burning smell. A damaged thermostat may also show burn marks or overheating. Finally, clean the oven cavity thoroughly, since spilled food and grease can continue cooking and create a microwave burning smell, burning plastic smell, or burnt odor during operation. Replacing a waveguide cover, power supply board, thermostat, or high-voltage component requires opening the microwave cabinet. 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 model number to find the exact replacement part for your Montgomery Wards microwave.
01 - Montgomery Wards 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 - Montgomery Wards 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 - Montgomery Wards 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 - Montgomery Wards 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 - Montgomery Wards 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
What should I do if my Montgomery Wards microwave smells like burning?
Can a dirty microwave cavity cause a burning smell?
Is the waveguide cover the cause of a microwave burning smell or sparking?
Could the power supply board, high-voltage capacitor, or thermostat be overheating?
How do I find the correct Montgomery Wards microwave waveguide cover or other replacement part?
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