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Kenmore microwave 721.66490690 not working

Light are on and you can use all the buttons but when you cvlose the door nothing happens

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: Maytag Microwave MMV1153

First of all, it's under warranty. So I would contact Maytag for a free fix.

See http://maytag.com/support/service_parts.jsp

For an out of warranty reply:

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.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

Posted on Nov 28, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave won't START!!!!!!!!!!!!

It's usually a broken tab on the upper 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.

While replacing the switch holder is the preferred solution, using hot glue to secure the switch to the holder is much easier and quicker. Just be sure not to let the door be slammed from now on.

We have the R1480 service manual for this model and have uploaded it to our site here to help you. You will need the free Adobe Reader to view or print it.

The best place to order Sharp parts is Tritronics.

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

Posted on Jul 28, 2008

SOURCE: F2 WArning light on Kenmore Microwave oven

The light bulb already works, so this isn't the problem.

Posted on Oct 01, 2008

  • 1 Answer

SOURCE: kenmore elite microwave oven displays "Locked" and will not respond

My Kenmore Elite microwave (don't have the model number in front of me) also mysteriously locked its own keypad (we were sitting in an adjacent room, heard a strange beep, and got up to find the LED reading "Locked."). I pressed and held down the Stop/Clear button for ~10 seconds and it returned to normal.

Posted on Dec 17, 2008

  • 1214 Answers

SOURCE: Whirlpool microwave cook light turns on but oven does not work

Check and replace the door safety switch.

Posted on Feb 15, 2009

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1 Answer

The kitchen timer button does not work on my Kenmore circular wave microwave.


If it has membrane switches, you might have a bad switch. Or, you could have a bad connection between the touch panel and the circuit board. Or the circuit board itself could have a problem.

Jul 25, 2016 | Kenmore Microwave Ovens

1 Answer

Microwave refuses to work when START button is pressed. Oven light stays on when door is closed. Control panel seems to be working ok but nothing happens after cooking settings are set and START button...


That's probably a failed door switch or door switch mount.

It's a pretty simple do it yourself fix. See this helpful file on door switches.

You can find handy exploded views and order parts by model number here.

But if your cooktop lights failed recently, you have a damaged control circuit board, which we can usually repair for $39.95. Details are here.

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

Jan 11, 2011 | Whirlpool MH1150XM Convection/Microwave...

1 Answer

Hi I have a new Kenmore microwave model 721.8503 - it is a month old and wont turn on.. I close the door and the light stays on and it wont work..the door is completely shut


It sounds like the light switch isn't being deactivated which is preventing the microwave from operating (a failsafe).
Look to see that the buttons inside the microwave (where the latches are inserted when you close the door) are actually being pressed.
They may be out of place, obstructed, or your latches on the door may be damaged.
If you don't see anything wrong, try pressing the buttons yourself (with a pen bottom) to see if the light goes off.

Dec 18, 2010 | Kenmore Microwave Ovens

1 Answer

Our Kenmore Microwave Oven # 721.89941490 does not respond when the "start" button on the touch pad is depressed. All other functions of the oven work normally, including time set, count down, light,...


poosible burned contacts on cook relay mounted on circuit board; or, a defective solder connection(s) on same board. another spot to check in the door microswitches.

Aug 30, 2010 | Microwave Ovens

1 Answer

Power on lights etc push start button but it clicks and nothing happens


Hello :

This could happen because of bad door switch or a loose door mount .This is the main reason that microwaves not heat even if the other functions work fine .

Warning : A microwave is capable to give you a serious electrical shock even when it's unplugged , so I recommend you to call a repair technician for help .

good luck .

please rate !

Apr 04, 2010 | Panasonic NN-C994S Convection/Microwave...

1 Answer

All the lights and buttons on the front of my Frigidaire PLMBZ209GC work but the turn table does not turn and the fan does not run and it does not heat. It counts down and the cook light beside the timer...


Hello :

That problem could happen because of a bad door switch .
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 .

That could happen because of slamming the door and not closing it gently .

WARNING : A microwave oven is capable of giving you a serious electrical shock, even when it is unplugged. I strongly recommend you seek the assistance of an appliance repair technician when conducting any microwave oven repair .

good luck .

please rate !

Mar 31, 2010 | Frigidaire Built-In Microwave

1 Answer

Kenmore Microwave Hood Combination 721.80019 does not heat. I follow all the troubleshooting procedures. Nothing solved the problem. Help!


My kenmore microwave will not work. The light stays on inside, buttons will push, but the start button does nothing. I've tried everything. The last thing I did was express defrost which was fine. Could it be something really simple? I hope so.

Nov 14, 2009 | Kenmore 63792 Microwave Oven

1 Answer

Kenmore over the range microwave 721.67600 will not cook


One of two thing happened here...
1. most likely...One of the interlock switches has malfunctioned. Micro. will NOT opperate unless ALL switches are working properly for safety
2. possible...the start button on the touch pad has failed in the circuit.

Feb 23, 2009 | Kenmore 62702 Microwave Oven

1 Answer

New Kenmore microwave won't start


One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

Not guaranteed to reveal the trouble, but sometimes it does.

There's a good chance it could have been bumped in shipping, causing misalignment of the door hinges or switches.

Jul 29, 2008 | Kenmore 63792 Microwave Oven

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