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Humming noise

Troubleshooting

Appliances

04/25/2024

HUMMING NOISE

Humming sound

○ Cause

Humming sound heard coming from the microwave oven.

○ Troubleshooting

Humming noise can either be coming from the fan running or the Magnetron operating. The

Magnetron will hum when in operation. Depending on the power level set, the Magnetron may

not stay “on” the entire time. This is considered a normal operating sound .

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