Question about Kenmore Microwave Ovens

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After pressing start, light goes on but not operating. Senor issue?

Can input time to microwave in my Kenmore Elite microwave model 721.7915, then press start and the light goes on, but there is no sound (motor?) and the turntable does not turn, yet the seconds countdown. Tried all buttons and same result, light on but not operating (no microwaving). It did operate once when pressed defrost, but tried repeating that defrost setting and 2nd time was nothing. I'm thinking a sensor problem? Any fixes (besides a new microwave)?

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  • 17 Answers

I had a similar problem once with an older Kenmore microwave, which at the time, were actually made by LG. After removing the cabinet, there was a small automotive type fuse in a clip-in fuse holder which proved to be "open" after checking it for continuity with a test meter. I replaced the fuse with the EXACT type and rating, and continued to use the oven for several more years until I gave it away. Please note, that microwave ovens are not something that you want to mess around with. Make absolutely certain that you have unplugged it before doing anything. In my case, I suspect the after several years of trouble-free use, the fuse had failed, -likely due to age. In your case, it may be a similar issue, so you might want to see if your microwave oven has a similar replaceable fuse. Beyond that, I would strongly suggest taking it to an approved service facility. Also, NEVER operate the microwave until you have replaced all covers, cabinet, etc. to it's original state.

Posted on Nov 12, 2014

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Posted on Jan 02, 2017

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  • 883 Answers

SOURCE: Keypad Problem?

look on the back panel for any hole with a "RESET" label next to it. insert a small pin to reset your microwave

Posted on May 25, 2007

MicrowaveSvc
  • 9085 Answers

SOURCE: GE Microwave TimeCook defaults to Defrost Auto

It sounds like your keypad (membrane switch) is failing.

If you or someone you know decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

There should also be a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting. You can use it to test for a bad keypad.

If you'd rather have us fix it for you, we do that for $39.95 plus parts and you can visit us via our link her eon Fixya http://tinyurl.com/yzjozk

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

Posted on Mar 18, 2008

  • 132 Answers

SOURCE: Microwave clock and duration won't set

Good Morning,
Unplug the oven and wait 3 minutes then plugit back in and check to see that it operates normally. Do not run the oven empty - place a cup of water in it. Let me know if this helps and thank you for using FixYa!

Posted on Mar 30, 2009

localwonder
  • 6784 Answers

SOURCE: Microwave will not heat food. punch in heating time, press start and nothing happens

HI. your control board has failed. you will need to replace the control board asap if possible.

Posted on Jun 01, 2009

heatman101
  • 43501 Answers

SOURCE: My microwave turns on, but

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

Posted on Apr 30, 2011

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