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Reviewed by Elena VolkovaSenior Editorial Reviewer — Electrical, Smart Home & Appliances

Wie te bellen · Appliance Repair Technician

Microwave not heating? Dit is wie je moet bellen

A microwave that runs but doesn't heat food usually has a failed magnetron, defective diode, or blown high-voltage capacitor. These components carry lethal voltage even when the unit is unplugged, so repairs require a trained appliance technician. A pro can diagnose the fault, replace the magnetron or diode, and test for safe operation — or advise replacement if the repair cost exceeds the unit's value.

What's going on

How to fix microwave not heating

Some "microwave not heating" cases look simple, but getting it wrong almost always costs more than calling a pro: hidden leaks, fire risk, code violations, and insurance headaches. A licensed appliance repair technician will diagnose the exact cause, use the right professional tools, and stand behind the repair. Most local pros offer free quotes and can visit the same day or the next.

Who to call

Appliance Repair Technician

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Symptoms to look for

  1. 01

    Microwave runs and the turntable spins but food stays cold

  2. 02

    Humming or buzzing noise louder than usual during operation

  3. 03

    Sparking or arcing visible inside the cavity

  4. 04

    Display and timer work normally but no heat is produced

  5. 05

    Burning smell from the back or bottom of the unit

FAQ

Frequently asked questions

Who should I call for: Microwave not heating?

Call a licensed appliance repair technician. Appliance Repair Technicians have the specialized training, tools, and insurance to diagnose microwave not heating safely and stand behind the fix. Most offer free quotes and can visit the same day or the next.

Can I fix this myself?

Some minor cases can be handled DIY, but most require a licensed appliance repair technician to avoid costly rework and safety risks. A free quote takes under a minute.

How fast can a pro come out?

Most appliance repair technicians offer same-day or next-day visits for non-emergency issues. True emergencies (burst pipes, gas smell, no heat in winter) are typically handled within 1–4 hours.

How much does it cost to fix?

Costs vary by severity and your location. Submit a free quote request to get real pricing from local pros in your area.

What are the signs of: Microwave not heating?

Microwave runs and the turntable spins but food stays cold. Humming or buzzing noise louder than usual during operation. Sparking or arcing visible inside the cavity. Display and timer work normally but no heat is produced. Burning smell from the back or bottom of the unit.