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mary dalton Posted on Mar 18, 2017

Kenmore microwave 721.7915. when I put in the time needed and hit start it does not turn on, but there is a scrolling message on the screen that says power 100. There is a click, the light comes on,

5 Related Answers

MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Mar 16, 2008

SOURCE: Everything works... except the heat!

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.

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A

Anonymous

  • Posted on Mar 27, 2008

SOURCE: microwave doesnt heat anything.

it is the door problem it seems to be known issue per target sales guy he advise to call emerson since it is past 90 days for target to return

Anonymous

  • 807 Answers
  • Posted on Mar 31, 2008

SOURCE: Everything works... except the heat!

Maybe one of the fuses, get an engineer to look at it, for safety reasons.

BIKER T

Terence Fourie

  • 909 Answers
  • Posted on Sep 17, 2009

SOURCE: Kenmore microwave (2 y/o) will stop soon after you hit start.

A quick test. Switch off power then remove outer cover. Look for the transformer. remove the two wires connected to the primary side. Note, do not toutch anything else. power still sitting on the cap. With those two thin wires disconnected, make sure they are not toutching each other or leaning on the metal frame. Set a program that has been a problem and let it run. If it still stops and does what its not supposed to do, your board needs replacement.

MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Oct 10, 2009

SOURCE: My kenmore microwave automatically starts and can not be stopped

If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open.

Is it possible that some spray cleaner got into the controls?

I always recommend that users instead spray cleaner on a soft cloth then wipe the control panel.

Also, I always recommend non-ammonia cleaners since ammonia can crack and damage plastic.

Otherwise, the spray can get into the controls and lock it up or make it act odd.

If it does not dry out over time, it may need to be manually dried or blown out.

The keypad may be damaged or worn out, or control unit may be damaged.

If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open.

On some models, the membrane keypad is not available as a separate part, so you would have to order the control panel frame assembly which comes with a new keypad.

In this case, you simply move your circuit board into the new frame. That is a simple do-it-yourself job.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Then you unplug the keypad (as per the photo below) and move the circuit board into your frame.

34374fd.jpg

Some connectors on the relays may have a lock:

positivelock.jpg
You can find handy exploded views and get part numbers by entering your full model number at the Sears Parts Site.

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

Once you have the Sears part number, you can usually get parts cheaper here.

If you might be interested in having us so the work for you, we charge $39.95.

Feel free to contact me directly.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller
[email protected]
http://www.microwavedisplay.com

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Everything works... except the heat!

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The most likely causes are a bad door switch or a problem with the control panel assembly. You can find critical safety information plus our information file on checking and replacing door switches at our site, via our poisting here: http://tinyurl.com/yzjozk If you need control panel repair, we do that for $32.50 nationwide.
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