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Whirlpool MH1140XM 900 Watts Microwave Oven
Problem for Whirlpool MH1140XM 900 Watts Microwave Oven

Whirlpool MH1140XMB-2 mic won't start




By lotzofspotz on Oct 09, 2009

" "
Whirlpool MH1140XMB-2 950 Watt over range microwave won't start, last time I used it, it worked great, the next time I went to use it, the interior light comes on and will not go out, the timer and clock works good, but it will not start at all, I have unplugged it and tried again but still the same, having to keep it unplugged, any help appreciated.
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Best Solution

posted on Oct 10, 2009
Very Helpful)

MicrowaveSvc
MicrowaveSvc

Rank: Guru  Whirlpool Kitchen Appliances  Expert
Rating: 89%, 5321 votes
This is usually caused by either a bad door switch or a loose door switch mount, which are pretty simple problems to fix.

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 the switch mount is broken, it's usually more economical and safer to add a dab or two of hot glue to the mount to secure the switch. Let it cool for about 30 minutes before using.

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.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

There should 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.



Or you can view and download it here.

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

If you've recently had trouble with your cooktop lights, one may have shorted, causing a problem on your control circuit board, which we regularly repair for $39.95 in about a week or so with a one-year guarantee.

 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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Asker's Testimonial
" I lifted the door a couple of times and the microwave started working, so we know it is the door switch mounts. Thank You!!!!! " - lotzofspotz

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