Question about Jenn-Air JMC7000 Microwave Oven

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Seal replacement? I think the seal on my JMC7000 door is leaking. There is condensation between the glass panels in the door and when cooking steam condenses on the cabinet just above the door. A moment ago the microwave shut off completely while cooking rice (as if the control electronics was faulty - or got wet?) with a blank display. After leaving the door open for a few minutes the display lit up again with no user intervention. I see from some online diagrams that one can replace the door seal: 1) Do you think this is the issue? 2) How do you remove and replace the seal if this is the problem? Are there clips holding it in place?

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  • Mawrob Nov 07, 2008

    The other thought I just had is that there might be an extractor fan that is not working?



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It sounds like your cooling fan has failed, or possibly the relay on the control board. This same relay also runs the turntable. Is the TT working?

It's critical for the cooling fan to work, or the magnetron can overheat, which will cause the thermostat to interrupt power until it cools backs down. Sounds like what happened to you.

If it gets too hot or gets hot too often, it can be ruined.

A failed fan can cause such overheating and a buildup of moisture as well.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

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

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

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

Posted on Nov 08, 2008


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When the oven is cooking for over 5 mins part of the door goes a white opaque colour inside the door, it is as if the seal is broken and steam is getting inside the door itself.

That's probably what's happening, but it's not dangerous as long as the internal cooling fan is running and the screen / mesh between the door panels is not arcing or rusting.

It's suggested that you leave the door open for a few minutes any time you cook and notice a moisture buildup afterward.

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

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This would require disassembly of the door panels, which is not recommended unless really required.

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It may be a clogged filter, a bird's nest in the outlet, etc. etc. Failure to vent can cause control panel and keypad trouble if it continues.

The manual / guide is found here:

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