E-23
Kenmore High-Voltage System Failure (Non-Inverter Models)

Microwave displays E-23 and will not heat.

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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

Open high-voltage transformer, Shorted high-voltage capacitor, Failed high-voltage diode, Shorted magnetron

How to Fix / Troubleshooting

Critical Safety Warning: The high-voltage section (transformer, capacitor, diode, magnetron) can store and deliver lethal voltage. Do not attempt to test or replace these components unless you are properly trained.

  • User-level action: Unplug the unit and do not use it until serviced. There is no safe user-level repair for E-23.
  • Visual inspection only: If you remove the outer cover (with power disconnected), do not touch the high-voltage components. Look for obvious burning or arcing, then reassemble and call a technician.

Contact a qualified appliance repair technician to diagnose and replace the failed high-voltage component.

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Repair Difficulty

Professional Required 5/5

Required Part

High-Voltage Transformer
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