Question about Whirlpool MH7135XE Microwave Oven

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Bulbs won't go out

I've got a Whirlpool microwave model MH7130XEZ-2. Both bulbs go on. Although touch switch beeps when pushed the bulbs stay lit only & will not rotate on and off.

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  • 8,820 Answers

We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week.

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.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa.

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

bulbs won't go out - c27405d.jpg

Posted on Nov 24, 2008

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My surface light bulb burned out and I replaced it with a new bulb. But now the bulb stays lit and it won't turn off even though I turn it off from the light switch. Please help.


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Model MH7130xez won't heat. everything else works. the clock, timer and lights. does this model have a fuse?


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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week.

At our Web site, you can get details of our service, plus we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

The lights fan can be inoperable or stuck on or no bright, too. Sometimes this will similarly affect the exhaust fan operation, too.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) 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, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

91756a3.jpg

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IF NOT AVAILABLE, THE TOUCH PAD MAY BE UNPLUGGED FROM THE MAIN P.C. BOARD OR MAY BE DEFECTIVE.

ALSO, TRY UNPLUGGING THE MICROWAVE FOR 5 MINUTES
TO RESET THE MICROCOMPUTER, THEN PLUG IT BACK IN AND SEE IF IT WORKS.

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Generally, the most common causes of a failure to heat are:

 

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose conneciton on the control unit circuit board
- bad magnetron or other high voltage part

 

At our site, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information.

 

See our listing here on FixYa: http://tinyurl.com/yzjozk

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