Microwave Fan And Light Wont Turn Off

How to fix a whirlpool microwave range hood light that won t turn off and stays on despite pressing the off button on the key pad.

Microwave fan and light wont turn off.

Was using the broiler on the stove and the fan started by itself and won t turn off. If your microwave just keeps going and going until the door is opened and the stop button is unresponsive the most likely cause is the control board being faulty or damaged. If you are cooking on the cooktop it can sense the heat and the fan won t turn off until the thermostat cools. On several models of microwaves the thermostat is super sensitive causing the exhaust to run longer than needed.

Start right here find appliance parts lawn garden equipment parts heating cooling parts and more from the top brands in the industry here. When it senses heat it turns on the exhaust fan. Units over a range or oven may automatically turn on the exhaust system when the area around the microwave becomes too hot. In certain situations when an interlock switch fails the interior light fan motor or stirrer motor may continue to operate after the microwave oven door is opened.

The exhaust fan thermostat is usually the failed component. I have tried unplugging and allowing it to rest but the fan turned on as soon as i plugged it back in. The smart board sometimes called the control board controls the microwave by powering the relays. The fan on my ge microwave will not turn off and is stuck on.

Microwave has automatic fan ignition setting pre programmed to keep the unit components from over heating. The magnetron will not operate because of a failsafe monitor switch. If your microwave doesn t shut off when you press the stop or pause button but does stop when you open the door there may be a problem with the smart board. This is over the stove model is spacemaker xl1800.

When this happens the microwave is not sending signals properly and will think it just needs to keep running. My microwave kicks on when the door is opened.