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HomeRepair HelpSamsung Microwave RepairSamsung Microwave producing a burning smell Repair
Samsung Microwave producing a burning smell
If your Samsung microwave burning smell usually points to a damaged waveguide cover, a failing power supply board, a defective high-voltage capacitor or capacitor, a damaged thermostat, or food debris left in the cavity. Start by checking the waveguide cover for burn marks, arcing, cracks, or looseness, and replace it if damaged or unable to stay in place. If the cover is intact and the oven cavity is clean, inspect the power supply board for burned areas or shorted components. A high-voltage capacitor can overheat and create a burning smell, while a faulty thermostat may also show heat damage or burn marks. Food splatters and spills can continue cooking and may smell like burning plastic, so clean the cavity thoroughly and cover food during use. Do not operate the microwave if you see smoke, flames, or active arcing. Replacing the power supply board, high-voltage capacitor, capacitor, or thermostat requires opening the 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, use a qualified technician. Enter your model number to find the exact Samsung replacement part for your microwave.
01 - Samsung 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 - Samsung 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 - Samsung 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 - Samsung 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 - Samsung 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 Samsung microwave smell like burning plastic?
What should I do if my Samsung microwave smells like burning while it is running?
Can a microwave capacitor cause a burning smell?
Could the power supply board or thermostat be causing the burning smell?
How do I find the correct Samsung microwave waveguide cover or other replacement part?
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