Ikea No Microwave Output

Microwave runs but does not heat; timer counts down, light and turntable work, but food stays cold.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed magnetron, Open high-voltage diode, Defective high-voltage capacitor, Faulty door interlock preventing HV enable

How to Fix / Troubleshooting

Safety: High-voltage components are dangerous. Limit yourself to basic checks unless you are trained.

User checks:

  • 1. Verify correct settings: Ensure you have selected a microwave power level (not just timer or clock) and that child lock is off.
  • 2. Test with water: Place a large mug of water in the center and run for 2–3 minutes. If the water remains cold, there is no microwave output.
  • 3. Listen for changes: Normally, you should hear a slight change in sound when the magnetron energizes. A very quiet operation may indicate no HV.

Technician actions:

  • Test magnetron, HV diode, and capacitor for continuity and shorts.
  • Verify door interlock switches are enabling the HV circuit.

Resolution: Replace the failed magnetron or HV components with IKEA-compatible parts.

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Repair Difficulty

Professional Required 5/5

Required Part

Magnetron
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