Sage Reduced Microwave Output

Microwave takes much longer than usual to heat food; water test shows slow temperature rise.

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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

Aging magnetron with reduced emission, low mains voltage, failing high-voltage capacitor, partial obstruction in waveguide

How to Fix / Troubleshooting

Safety: Use caution when testing with hot water.

Steps to evaluate slow heating:

  • 1. Perform a water test: Heat 250 ml of room-temperature water on full power for 1 minute. Compare the temperature rise to the performance specified in the Sage manual.
  • 2. Check power setting: Ensure the power level is set to 100% and not a lower setting or defrost mode.
  • 3. Verify supply voltage: If possible, have an electrician check that the outlet voltage is within specification under load.

If the microwave consistently underheats despite correct settings and supply, the magnetron or high-voltage components may be degrading and should be replaced by a technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Magnetron
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