Microwave Not Heating
A microwave that runs but doesn't heat usually has a failed magnetron, high-voltage diode, capacitor or door switch. These components hold dangerous voltage even when unplugged, so this is not a DIY repair. For built-in and drawer models, repair is often far cheaper than replacement.
If you smell gas: do not operate switches or appliances, leave the home, and call your gas utility or 911 from outside before contacting us. If you see smoke, sparking, fire or a burning electrical smell: turn off the appliance at the breaker if you can do so safely, and call 911 if there is any flame. Do not touch exposed wiring. Turn the circuit off at the breaker and keep everyone away until a professional arrives.
Once everyone is safe, we're ready to help.
Common causes
- Magnetron
- High-voltage diode
- Capacitor
- Door switch
Should you call a technician?
Many issues like this need hands-on diagnosis to identify safely and correctly — especially anything involving gas, electrical components, or water. A technician can confirm the cause and give you a clear, upfront estimate before any repair begins.
Frequently asked questions
Related services
Ready to get it fixed?
Request service online or call — we'll take it from there.