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Everything works... except the heat!

My Kenmore microwave will do everything but the magnetron will not turn on! I can enter a time and hit start... the light will turn on, time count down, and bell ring, but the fan and magnetron will not start up.

I have a Kenmore microwave Model number 721-65223. Everything works except the heat. I tried unplugging it and restarting and setting it. I also tried waiting several hours and trying it again. the light goes on, the turn table turns, the timer works great but there is no heat.

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  • Anonymous Apr 24, 2008

    Everything also appears to work on ours, but it does not heat. Wouldn't that be a bad magnetron?

  • Anonymous Mar 15, 2014

    Installed new magnetron and all is good except now the start button wont work

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  • Microwave Ovens Master
  • 9,011 Answers

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

Switch or mount trouble can be caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

If you someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can probably find an exploded view by entering your FULL model number here: http://www.searspartsdirect.com

A full Sears/Kenmore model number usually has 3 digits, a dot, then 8 more digits, such as ###.########

If you think the problem is on the control panel, which we repair these nationwide for $39.95 postpaid.

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Mar 16, 2008

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