Question about Jenn-Air JED8430 Electric Cooktop

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Cold air draft

We are noticing for the first time this year a cold-air draft coming through the downdraft grill on our Jenn air cooktop (the cooktop is several years old).  We had deck work done this summer (the deck is adjacent to the kitchen where our downdraft vent may exit, although I'm not certain of that) and wonder if the exterior vent had a "flapper" cover on it that may have been removed.  The deck is ground level, so impossible to see underneath.  Any thoughts on how to eliminate the cold air draft?

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  • 6 more comments 
  • mshunk Nov 25, 2008

    Thanks, unfortunately, we will be using for the winter. I'll have to try to get to the flapper under the deck. Ugh.


  • ctittelfitz Dec 12, 2008

    I have cold air pouring in from the down vent. I checked the vent door on the outside of the house and it is closed. How can I reduce the cold air coming in? I have not been able to find a "cover" for the down vent that would be of a safe material. Right now, I'm just using a newspaper or towels!

  • Anonymous Dec 23, 2008

    I just cover it with a kitchen towel when I'm not using it. If I don't, the kitchen is freezing in the morning.

  • Anonymous Dec 23, 2008

    I put a folded kitchen towel over it when I'm not cooking. If I don't, my kitchen is freezing!

  • Anonymous Jan 18, 2009

    The funny thing about mine is the microwave over the stove,it feels like a freezer.The flapper is on the outside of the house but the cold air still gets in.

  • Anonymous Jan 27, 2009

    I have called and contacted all that can think of, no such luck. I wrapped the frame with plastic wrap and placed it back into place to cut down the cold air. It helps..

  • Anonymous Feb 24, 2009

    before we renovated our kitchen there was no cold air coming in, now it is freezing.

  • Robert Jan 05, 2012

    I have the EXACT same issue. Older Jenn-Air cooktop w/ downdraft vent going outside. Cold air rushes in despite having the flapper in place. There has to be a better exterior vent or some way to prevent this. It's as bad as leaving a window open!! I've also wrapped my vent with plastic wrap which does do a lot to minimize it, but there must be a better solution...

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  • Jenn-Air Master
  • 2,651 Answers

The only way is to block off/check the flapper., if your not going to use for the winter you can disconnect the vent from under the cabinet temporaily and close off there till you can gain access to check outside grill

Posted on Nov 25, 2008

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