Kenmore Microwave Fan Turns On By Itself. Too hot means the temperature around the control panel is above 150 degrees fahrenheit. The control panel supplies voltage to the various cooking components sometimes without even being told and this could suggest an issue with it.
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For older models, simply tap the fan button until the fan turns off. Below is a link to the control board you'd need to order for your model. If the touchpad is working properly, the main control board is likely at fault.
The Vent Fan Draws Hot Air Out Of The Microwave Into The Range Hood.
It may also automatically come on and cycle on and off to cool the microwave oven’s controls while the cooktop below is being used. **the microwave can still shock you even unplugged!! The microwave oven’s cooling fan (on some models), which is separate from the vent fan, automatically comes on during microwave oven operation to cool the microwave oven.
It Is Also Worth Knowing That Many Membranes Are Heat Activated.
Anytime a microwave begins to operate without being turned on, it becomes a fire hazard. If a keypad membrane is old or malfunctioning, it can actually activate the controls by itself. If the touchpad is working properly, the main control board is likely at fault.
The Sentry System Uses A Temperature Sensor To Monitor Air Temperature.
The interlock switch in the door may be stuck or in some cases, the interlock relay on the control panel could also be stuck. I had a kenmore that did this. Problem with the control panel.
My Initial Thought Is The Control Board Only Because If It Was The Control Pad, Then, To My Mind, The Light, Fan And Turntable Would Also Operate Because The Control Pad Doesn't Control These Functions.
If the control board is defective, replace it. Less chance of failure if people let the unit shut off by internal relay control before opening the door. Refer to the range hood's tech sheet or technical data for a temperature/resistance chart and replace the temperature sensor if its resistance doesn't.
Turning Off This Fan Reduces Noise From The Microwave, But May In Turn Lead To Higher Internal Temperatures.
First, make sure that the touchpad is working properly. If the fan turns on when the area above the cooktop is at room temperature, test the temperature sensor by using a multimeter to check its resistance. If the faulty oven is used, close supervision is recommended in case of fire.
