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HomeRepair HelpGibson Microwave RepairGibson Microwave producing a burning smell Repair
Gibson Microwave producing a burning smell
When your Gibson 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 against the waveguide and produce a burning smell. If the cover is scorched, cracked, or will not stay in place, replace it. After confirming the cavity is free of food debris and the cover is in good condition, inspect the power supply board for burn marks or a shorted component. A defective high-voltage capacitor or capacitor can overheat and create a burning smell, while a damaged thermostat may also show burn marks or discoloration. Food splatter left inside the cavity can continue cooking and cause your microwave to smell like burning, so clean the interior and cover food during use. Any repair requiring the outer cabinet to be opened involves serious electrical danger. 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 repairs involving the capacitor, high-voltage diode, transformer, or power supply. Enter your model number to find the exact replacement waveguide cover or other Gibson microwave part for your appliance.
01 - Gibson 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 - Gibson 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 - Gibson 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 - Gibson 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 - Gibson 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 Gibson microwave smell like burning?
Can a waveguide cover cause microwave sparking and a burning smell?
What should I check if my Gibson microwave still smells burnt after cleaning the cavity?
Is it safe to test a Gibson microwave that smells like burning?
How do I find the correct Gibson microwave waveguide cover or other replacement part?
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