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Fan runs when door is closed - no heat

Fan begins to run as soon as the door is closed, but microwave oven does not heat anything and turntable does not run, even if it is turned on from the control panel.

Posted by John Varine on

  • 1 more comment 
  • John Varine Jun 20, 2007

    I will keep that suggestion in mind.

    Thanks.

  • Anonymous Mar 13, 2014

    micro begins to run when closing door and not setting time

  • Anonymous Mar 16, 2014

    I have a sharp r2130js over the range microwave sometimes when you close the door it runs with light on but not heating when you can use it control panel seems fine

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1 Answer

Anonymous

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  • 1 Answer

This is normally 1 of the interlock door micro-switches not working.

Posted on Jun 20, 2007

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Kenmore Microwave model Fan running and light on when door closed.

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Hi, I have an over the range microwave oven that just stopped working. When you close the door it just keeps running and won't shut off. I unplugged it and plugged it back in and checked the breaker.

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If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0

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Does not heat food-master relay reset, all electric OK (fan runs, time & all other settings show OK, turntable rotates), door closed tightly, control lock

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Turntable and Fan won't stop running when door is open.

With the model number, we can offer more specific advice or an estimate.

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Not heating

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Microwave oven service is not for do-it-yourselfers. There are potentially deadly voltages present even with power off, and a chance of microwave leakage if repairs aren't done properly. Let a professional give an estimate to repair it, or just replace it if it's under $100. (When I was servicing these things it wasn't unusual for a repair to cost over half the price of a new one. That's one of the reasons so few shops still work on small appliances.)
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place in microwave and put on cook for max 10 secs, if the led's light up you have microwave energy, shut off the oven as soon as they glow otherwise you end up with a mess.
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Sounds like a door switch problem or stuck relay contacts on the control PCB. Do the light and fan run too or just the T/T??
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It's probably a bad door switch or switch mount. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk Feel free to contact me directly if you have further questions. I appreciate your thoughtful rating of my reply.
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