Question about Whirlpool MH1150XM Convection/Microwave Oven

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Under Hood Light, bulb is fine (brand new)

When replacing my burnt out bulb, I negliected to unplug the microwave, and alas, blew a fuse in the house's fuse box. I have since replaced the bulb, but the light still doesnt work. I tested to see if electricity is event getting to the bulb outlet, which it is not. Is there an internal fuse box? How do I get to it? I did some slight exploration, but didnt want to dig to far without knowing what I am going after. Thanks, Chris

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  • ukusa Dec 05, 2007

    My Sears Advantium 120 hood light bulb and extractor fan is no longer working.  How can I fix this.  Thanks Steve

  • thecurler Jan 21, 2009

    I think the fuse is blown on our kitchenaid over the range microwave. I had the control panel off and can see the fuse but it is wedged right next to the little fan. Any ideas on how to change without pulling everything off?

  • adnil1015 Feb 20, 2010

    Same thing happened to me. Went to change the lightbulb w/o unplugging the unit and the whole thing won't work now. Where is the best place to get a control board?



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This is a problem with the control board, which we commonly repair for $32.50. This is caused by not disconnecting the microwave from the power line when removing or installing a bulb. Feel free to e-mail me at _ for more information or visit _ for full details.

Posted on Sep 15, 2006

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There is definitely a fuse in the unit. It normally is behind the control panel. The control panel opens by removing just one or two screws and possibly lifting up slightly to unhook from cabinet -BUT UNPLUG UNIT BEFORE DOING ANYTHING. Do not understand why changing light bulb would blow any fuse - unless you did something unusual.

Posted on Aug 22, 2006

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Chris, I just had the same thing happen and am online trying to find a fix. I have taken the whole thing apart looking for a fuse and only found one that appears to be the "main". Did you find the "fix"? Thanks so much! John Birmingham, AL JBLYDA@CHARTER.NET

Posted on Sep 04, 2006

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1 Answer

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As silly as it sounds --turn the equipment of at the wall before you work on it as it might have been you that blew and not the fuse

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We see this a lot. The problem is on the control panel, which we regularly repair nationwide for $39.95 postpaid.

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:

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

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The control circuit board needs to be removed and repaired. We routinely repair these from customers nationwide for $32.50. It sure beats the cost of a new board!

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