KEMC377K

Most common issues on this model

1. A humming oven that never warms, caused by a capacitor, diode or transformer that has failed
2. A control board damaged by years of hot, greasy air
3. A cooling path so greasy that the oven overheats and stops on its own
4. A cover inside the cavity that has scorched and begun to arc

A buzz from inside the cabinet, a smell of hot electronics, or an oven that clicks and then goes dead all point to the electrical heart of the KEMC377K, and none of it is for the owner to open. Sold as the KEMC377KBT, KEMC377KSS and KEMC377KWH, it holds a charge in the high-voltage circuit even when unplugged.

We discharge that circuit first, then test the capacitor, diode and transformer one at a time with a meter. A single bad part is far cheaper than guessing, and testing tells us which one it is. Before that we look at what may have caused the failure: a clogged cooling path and a scorched waveguide cover both put stress on the tube and the supply.

The control board is examined for heat and grease damage at the end. A written price comes before any part is ordered, and the repair carries a 30-day workmanship warranty.

Key features

• Base model KEMC377K
• Microwave oven category
• Versions KEMC377KBT, KEMC377KSS and KEMC377KWH