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- > Do-It-Yourself Appliance Repair Help > The Kitchen Appliance Repair Forum > GE Profile JGB920SEF2SS - Touch Control meltdown during oven cleaning

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GE Profile JGB920SEF2SS - Touch Control meltdown during oven cleaning  Rating:  Rating
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 Posted: Thu Feb 22nd, 2007 02:24 pm
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Imin Overmyhead
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The background: I'm cheap. I know that.  We've been talking about remodeling our kitchen for years.  I figured "I could figure out how to do all that!" Truth is, I was able to figure out most of it, but some aspects of electrical wiring remain a shrouded mystery.  So it was, in my haste to get the new recessed lighting working the day before my in-laws were arriving for Christmas, I sent 240 volts of pure electrical mayhem surging through my appliances.  My wife smiled as everything came on, but commented on the strange humming the stove was making.  She opened the door, turning on the light, which was apparently more than it could stand.  The stove went dark. (The error of my ways quickly became apparent and I thankfully sacrificed only the one appliance to my misguided wiring.)

I had Sears come out to look at the stove, and $75 later (probably worth it) they diagnosed the problem as the touch control panel (part WB27K10145, which apparently replaced part no. WB27K10087 for some reason).  They wanted $460 more to replace it, although they needed to special order it.  I shopped it online and found it one place in stock for $123 priority shipped.  It appeared to be pretty much plug and play - I found a diagram showing how to access it (just a few screws off on the back) and I swapped it out in a few minutes.  Voila!  I'm the hero.

My new Problem: Until a few weeks ago.  In anticipation of having another large dinner gathering at the house my wife decides to clean the oven.  Apparently this involves some thermo-nuclear temperature extremes, which permeate the housing for the aforementioned touch control gizmo.  The front side of the touch controls start to develop warped bubbles, and soon the oven starts the "F7" error routine.  Manual says to unplug for 30 minutes, which we do.  Plug it back in, only the Start button beeps.  After a bit, I manage to get response from a few more buttons and actually turn the oven on before we go back into F7 meltdown. Back in the doghouse.

My Questions: I now have a second touch control panel on the way.  Is there something I missed in installing the first one?  I remember a piece of heavy felt-like material in the housing which I suppose was insulation.  I thought I put it back where it was, but is there a very specific placement I need to observe? Can I put anything else in there to further protect the board?

I'm also on the fence about replacing the housing with the now somewhat bubbled touch control surface.   I think it's part WB36K10313 (trim & membrane -see picture).  I'm not sure how tough that might be to replace - any thoughts? It's about $150.  Could that part be linked to the F7 problem, or is it purely cosmetic?

Thanks to all!


 

Attachment: Trim & Membrane.jpg (Downloaded 39 times)

Last edited on Thu Feb 22nd, 2007 02:29 pm by Imin Overmyhead

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 Posted: Thu Feb 22nd, 2007 03:43 pm
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Keinokuorma
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There have been various cases where the self-clean (read: self-destruct) cycle did more damage than good. Apparently there are so many, many fine ovens on the market, that develop problems when self-cleaned.



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 Posted: Tue Mar 13th, 2007 08:17 pm
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Imin Overmyhead
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More trouble . . .

I replaced the "touch control panel" (essentially the circuit board for the whole unit - part no. WB27K10145).  This was the second time I did this, but thankfully the place I bought it from replaced it under warranty.  After installing this new one, I went right back into F7 mode (touch buttons non-responsive for a bit, then the oven works for about 15 minutes, then it goes into F7).  Do I now need to also replace the part that has the buttoins on it - called "trim & membrane" and pictured above? (Part number WB36K10313).  I'm getting to the point where it'll be cheaper to just buy a whole new unit!  Also - is this new part a difficult one to replace?  Any tips?

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 Posted: Tue Mar 13th, 2007 09:04 pm
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Keinokuorma
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I'm very afraid so... looking at this link:

http://www.repairclinic.com/0081.asp?RccPartID=1086941&SeqID=1&Chg=1

that part contains the actual keypad, with strip that connects to the "control glass touch". If it is bubbled over from heat, probably some "buttons" are permanently closed, some may close no more, and also some tracings may be shorted out to form abnormal connections, or blown open...

The circuit board and membrane got probably damaged already before the button overlay bubbled over, might even be that the membrane was the only one to take deadly damage yet... these membrane k-pads tend to tolerate very little deformity without developing some malfunction. So the new circuitry works, but after a while finds that it gets abnormal or erratic input from the k-pad and goes to error state.

Sad that it has to be all this plastic trim sold as one part with the key membrane and button overlay... a wiser design would allow you to replace the membrane/strip and the button overlay separately.

Last edited on Tue Mar 13th, 2007 09:13 pm by Keinokuorma



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 Posted: Wed Mar 14th, 2007 06:58 pm
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Econo Appliance



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My recommendation is to not use the self-clean feature within a month before any major dinner events (Thanksgiving, Christmas, etc).     Very often,  it causes problems rather than doing any good.   I've seen self-clean destroy electronic components.

 Good luck with the touchpad.



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 Posted: Thu Mar 15th, 2007 08:15 pm
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jeff lee
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 I feel for you bud, ( see my thread posted earlier about a GE JKP48B0F6BB wall oven) that is just over 3 months old.
The touch panel went bad about a week ago, this after the unit was used 4-5 times.
The self cleaning function has not even been used yet!
Still waiting patiently for the part to arrive here (Hawaii), was told by repair person that it would take a minimum of 2 weeks to arrive.
Raised an issue with GE service about this, they "graciously" extended the basic 1 yr. warranty 6 months........thrills.......maybe I should throw a party ! Just as long as I don't have to bake anything !

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 Posted: Mon Mar 19th, 2007 03:05 pm
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Imin Overmyhead
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Thanks for all your feedback.  I'm going to bite the bullet and order the new touchpad.  I'm hoping it won't be too complicated to install. (Any tips on that?) If I get stuck I may give you a call Econo Appliance since you're in the neighborhood here in San Diego.  At some point my pride will falter and I'll just call in an expert!

Next time I buy a self-cleaning range I'm going to self-clean the heck out of it early in the warranty period instead of waiting a few years to try it out.

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