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HomeRepair HelpPanasonic Microwave RepairPanasonic Microwave producing a burning smell Repair
Panasonic Microwave producing a burning smell
If your Panasonic microwave smells like burning, stop using it until you identify the source. The most likely cause is a damaged or loose waveguide cover that is arcing or burning. If the cover is scorched, cracked, or will not stay in place, replace it. Next, inspect the power supply board for burn marks or a shorted component, especially after confirming the cavity is clean. A defective high-voltage capacitor, sometimes listed as a microwave capacitor, can overheat and create a burning smell, as can a damaged thermostat. Food debris and grease left inside the cavity can also continue cooking and produce a microwave burning smell, so wipe up spills and remove residue before testing the oven again. Any repair that requires opening the outer cabinet involves serious electrical hazards. 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 high-voltage capacitor, high-voltage diode, power supply board, or other high-voltage components may require a qualified technician if you are not familiar with capacitor discharge procedures. Enter your Panasonic microwave model number to find the exact replacement waveguide cover, capacitor, board, or thermostat for your appliance.
01 - Panasonic 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 - Panasonic 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 - Panasonic 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 - Panasonic 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 - Panasonic 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 Panasonic microwave smell like burning?
Can a Panasonic microwave waveguide cover cause a burning smell or sparks?
What parts can cause a Panasonic microwave burning smell after the cavity is clean?
Can I use a multimeter to find the cause of a Panasonic microwave burning smell?
How do I find the correct Panasonic microwave replacement part?
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