Microwave Sparking Inside
You see sparks or arcing inside the microwave during operation.
Common Causes
Damaged waveguide cover, metal in cavity, worn turntable coupling, deteriorated interior paint.
DIY Troubleshooting Steps
Stop immediately.
Check for metal.
Inspect waveguide cover.
Check interior walls.
Don't want to troubleshoot?
Book a repair and we'll handle it. Free diagnostic with approved repair.
Most issues get worse (and more expensive) over time.
Why you shouldn't wait
A sparking or arcing microwave can damage your home’s electrical circuit. Continuing to use a malfunctioning unit risks fire or electrical shock.
When to Call a Professional
If the waveguide cover is damaged or sparking continues. Stop using the microwave.
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A virtual video diagnosis tells you exactly what's wrong, what parts you need, and whether it's worth fixing. $49 via video chat.
Frequently Asked Questions
Why is my microwave sparking inside?
Damaged waveguide cover, metal in cavity, worn turntable coupling, deteriorated interior paint.
How much does it cost to fix a microwave that is sparking inside?
Typical repair costs range from $80–$200. Free diagnostic with approved repair.
Can I fix a sparking inside microwave myself?
If the waveguide cover is damaged or sparking continues. Stop using the microwave.
Estimated Repair Cost
$80–$200
Free diagnostic with approved repair. Price varies by brand and model.
Need Help Now?
Same-day service available. 90-day parts & labor warranty.
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