Ge Microwave: not heating

Based on 31 community discussions Community Analysis

⚡ Quick Answer: Most common fix for not heating: Replaced the magnetron and everything works perfectly. (67.0% DIY success rate)

Common Causes

  • Magnetron failure (7 mentions)
  • Thermal fuse issue (5 mentions)
  • Door switch malfunction (4 mentions)

Top Solutions

  1. Replaced the magnetron and everything works perfectly.

    Success rate: 3.0% DIY: Yes Medium
  2. Replaced thermal cutout (KSD-301) that burned out.

    Success rate: 3.0% DIY: Yes Medium
  3. Adjusted door switches to ensure proper contact.

    Success rate: 3.0% DIY: Yes Easy
  4. Replaced the capacitor and diode, which fixed the microwave.

    Success rate: 3.0% DIY: Yes Medium
  5. Replace the 20 amp glass fuse on the filter board if it is blown.

    Success rate: 3.0% DIY: Yes Easy

Can I Fix This Myself?

67.0% DIY Success Rate

Either

Community Discussions

blue/white flash, then dead

Replaced the capacitor and diode, which fixed the microwave.

turns on, rotates, but not heating

Replaced thermal cutout (KSD-301) that burned out.

microwave not warming

Replaced the magnetron and everything works perfectly.

Not heating/Not spinning

Replaced all three door switches and the door switch holder, which resolved the issue.

control board replacement needed

Replaced control board with part number WB27X10672 from A-Z Appliance Parts.

Source: Reddit r/appliancerepair

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