Question about Jenn-Air WW30430P Stainless Steel Electric Double Oven

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LED Display fading

I have the Jenn-Air wall oven model WW30430P and the LED display is fading, I can still see the clock but can no longer read the temperature nor the timer. If anyone can diagnose the problem and especially the part numbers I would need to replace I would be grateful.

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  • rwfo Apr 25, 2008

    I have had the same problem for many months. Jenn-Air repairman first replaced the display board -- no change, cost $340. Next changed all circuit boards; still no change. BTW, a good whack on the display usually brings the display back for a while. The repair guy won't try again because he says he doesn't know what to do. I spoke with Jenn-Air customer service. They said that they would check the problem and call me back. Never did and won't return phone calls. Only suggestion was to try another repairman.

  • Anonymous Jan 01, 2009

    I have the same problem, lights are dim and have been for about 6 months. Glad to know that replacing the insides won't necessarily work. I wish I had the ability to solder in my own as suggested.

    Time to rip out the Jenn-Air and install somethign better!

  • mikezav May 11, 2010

    nix the fan issue it is working after I removed the panal again and reseated all the connections. The display is working perfectly thanks again as the capacitor cost $1.39 and I paid $10.00 at a TV repair shop for them to the soldering.

  • mikezav May 11, 2010

    I did exactly as described and replaced the bad C3 capacitor with the one from radio shack and display is fine though I noticed the fan is not working now - any thoughts?

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As noted in solutions to other Jenn Air ovens, this is often solved by replacing the capacitor labeled C3 on the circuit board that contains the display. Oven heat apparently causes it to fail over time. This is a solder connection to the circuit board. Not hard if you have any experience with this kind of soldering it is straightforward.

Seven phillips sheet metal screws to remove panel assembly, plus two electrical connectors. One ribbon connector from touch panel to board, then four 1/4 hex sheetmetal screws to remove circuit board from touch panel and metal frame. Then soldering iron.

It did work on a 40300 dual unit, which is same as this model except for cosmetics.

Capacitor is 35 volt 68 microfarad. Radio shack has 100 microfarad, which one report says works. Radio shack doesn't have a 68, but they do have 22 and 47 which mounted in parallel give 69, which is within tolerance. That's what I used. The capacitors cost $1.29, less than 1% of the cost of a new circuit board.

Posted on Jan 01, 2009

  • JTcincinnati Oct 21, 2010

    I wanted to second gregglee's rec; our light went out (or become extraordinarily dim) and lead to the broiler not functioning properly. I went to Radioshack and purchased two axial capacitors, 22 and 47uf, for under $3 bucks. De-soldered the capacitor labeled C3 on the control board from the reverse removed the bad part, tied the two new capacitors (positive to positive), soldered the wires, inserted through circuit board and then soldering to board. Whole process maybe 15 minutes after returning from the 'Shack.

    Also had to replace door hinges, another common problem on this model of Jenn Air. The screws at the top of the hinge place first have to be removed. These replacement parts were ordered via appliancepartspro.com which was both the cheapest and fastest to deliver.

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Made the change using 2 capacitors but there is no change. Any other suggestions?

Posted on Apr 30, 2013

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We have this happen once after 4 years. Just like others, we replaced the display board, it seems to work fine. It might have something to do with the oven doors are not closing correctly. Please refer to the same model with topic, "The oven doors are not closing all the way".

Good luck.

Posted on Oct 03, 2008

We've had this happen twice. Make sure you don't spray the screen with any cleaner...liquid is what causes this. Had to replace the board...$390. Sorry.

Posted on May 17, 2008

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GREGGLEE HIT THE SOLUTION ON THE NOSE. I USED THE 100 MICROFARAD AND HAD THE JOB DONE IN LESS THAN 30 MINUTES. MAKE SURE THAT YOU ALIGN YOUR NEGATIVE LEAD FROM THE CAPACITOR TO THE NEGATIVE HOLE IN THE BOARD OF THE C3 CAPACITOR LOCATION (IT'S MARKED BY A SOLID BAR NEXT TO IT). GOOD LUCK - IT'S NICE TO SEE THE TIME AND SETTINGS AGAIN.

Posted on Jan 20, 2009

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Tnx for the inputs. I found the perfect solution -- I ripped out the ovens and sent them where they belong, the dump. Replaced with a different brand. Will never buy Jenn-Air or related brands (Maytag) again, nor will I do biz with the dealer who took my money without fixing the problem.

Posted on Oct 03, 2008

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