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Kenmore mircrowave model 721.66222500 Pretty accurate description from grandson it has lightening in it. Was running when you shut the door and timer at 0. Did not shut off when pushing stop, had to open door. Have had it unplugged for a couple of days. Plugged it back in and heated up a cup of water fine. Is this safe to continue to use? What would cause this problem? Thank you.

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6ya6ya
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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9098 Answers

SOURCE: microwave runs when the door is open.. stops when you shut it.

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.

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

If you or a friend 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

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

Posted on Feb 11, 2008

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MicrowaveSvc
  • 9098 Answers

SOURCE: GE JVM240 microwave - shut door, fan runs,can't set timer or cook

The "main" relay on the control circuit board is stuck (shorted) and needs to be replaced.

We regularly repair these control units for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

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.

Feel free to contact me directly (and please remind me of your full model number) for more information & help.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

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Posted on Dec 02, 2008

  • 1 Answer

SOURCE: Panasonic microwave oven nns952wf runs when door is open

yep going through the same thing myself. I found that the OMRON switch V-16G-3C25-M is bad and now I'm trying to find one. I contacter OMRON but they said the switch can only be orded from panasonic so I'm going that route myself. If I have any luck I will write back.

Posted on Jul 22, 2010

heatman101
  • 43501 Answers

SOURCE: Jvm1870sk04 GE profile microwave will not shut off

Hi, Main control board bad...
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 Sep 20, 2010

heatman101
  • 43501 Answers

SOURCE: Microwave Model JVM 1870 stopped heating, all else works (timer)

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

Microwave Oven Basic Troubleshooting Tips

heatman101

ggk

Posted on Sep 30, 2010

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The light is out in the mircrowave and it does not work. When you enter the time and press start it says "door"


This is usually caused by either a bad door switch or a loose door switch mount, which are pretty simple problems to fix.

Our file on door switches is here.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

Also 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.

If you don't find yours, or if you want to look at it without disassembling the oven, you can download it here.

You can find helpful exploded view diagrams and order parts by entering your full model number (KBMC140HSS0, KBMC140HSS02, KBMC140HSS03, KBMC140HSS04, or KBMC140HSS05) here.

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

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Microwave won't function.


This is usually caused by either a bad door switch, a loose door switch mount (which are pretty simple problems to fix) or occasionally a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

If you or 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:.

Also see http://www.microwavedisplay.com/doorsw.txt

You can usually find exploded views and order parts by entering your model number at the Sears parts site.

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

There may also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

If you only need a switch, you can order a universal type here for $5 postpaid.

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.

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

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