Question about Whirlpool MH1150XM Convection/Microwave Oven

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Door catch not working on whirlpool MH1150xm


The pivoting catch on the body of my whirlpool gold MH1150xm is not catching the door latch. I can see that the top latch is not under tension any more and is not returning to its normal position when the door is open or closed (the light remains on). If you can also please tell me how to take it apart as well, I would greatly appreciate it!
I can see the parts at

Thank you,


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  • erinjstephen Feb 03, 2009

    Unfortunately, it's not in the door. I wish it was b/c that looks easy. It's where the door latch catches. The plastic catch (the one that looks like it pivots) has disappeared into the hole on the top latch. I can see it in there and it doesn't look broken, but I don't know how to proceed to see what's going on. I've used those diagrams and it's either the spring, or the plastic piece. It's piece 11 &/or 12 in the diagram. I would appreciate further help if you can please help.

    Thank you!


  • erinjstephen Feb 04, 2009

    FIXED! Yay! Thank you so much!

  • erinjstephen Feb 04, 2009

    The cam part just got pushed back into the microwave somehow & it was easy to restore it to its normal position once we could see it.



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You have to separate the door panels (as shown in the attached photo) and then you'll see the previously hidden screws you need to remove.

Or you can watch a YouTube video (not a video I made) that demonstrates how it's done.

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

If you gently push up on the door latch heads (hook-like devices sticking out of the door) there should be spring tension. If they just flop right up, the spring is off inside.

Normally the problem is not the spring, but a broken spring mounting tab on the door latch head (hook) assembly or the inner door panel.

If it's the door panel, it's usually easier and cheaper to use epoxy and some kind of hardware to fashion a new spring mount.

The door latch head (hook) is easy to replace or repair if that's the issue.

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

door catch not working on whirlpool MH1150xm - 4c9c250.jpg

Posted on Feb 03, 2009

  • William Miller
    William Miller Feb 03, 2009

    Oh I see - YIKES! I didn't read your post closely enough. Sorry.

    I would suspect the cam plate (ref # 12) has a broken tab which holds it or the spring in place.

    You'll need to remove the control panel assembly to be able to get to the "interlock" (ref # 13) which holds the cam plate and spring.

    I'm betting you'll have to take that part off, and if so, please carefully mark its position so you can get it back exactly where it was.

    Otherwise, there can be leakage, which can pose a danger of burns or damage to the oven or you!

    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.

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

    our Web site, we have a video
    available showing how to remove a typical
    over the range control panel assembly in under 5 minutes.

    Please let us know how it goes.



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