The display brightness has become progressively dimmer and now no longer works at all.
Is a new display module available or do you know which chip to change?
Any other possible causes?
The microwave and grill/ convection oven still work ok.
It's an old model I know, but I am an electronics engineer and can change a module or chip safely.
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I solved this. Its a vaccum flourescent display. The voltages that drive it are reducing because the capacitors on the control board deteriorate with temperature. Replace the 3 capacitors and its good as new.mine still working after 2 years...$.20 at radio shack...or have a repair place do it for you...saves $250 for a new board
Dim display is TOTALLY independent of F7 error.
The display will dim as the display board capacitors wear out - due to the heat. Replace the capacitors on the display board (see my other posts) and your be able to see the F7 error code as bright as can be!
The problem is likely bad capacitors on the clock module. I had the
same problem on a similar oven and fixed it by replacing the capacitors
on the clock module. Find someone who is good with electronics to help
you. The parts will be a few dollars at most. Give them a tip too. See
this link for more info: http://www.badcaps.net/forum/showthread.php?t=7902
I had the same problem and found the solution on-line.
Replace the C3 capacitor on the dispaly module. (100 UF, 35 volt, high temperature)
The local Jenn Air dealer wanted $211 for a new display module.
I purchased a Cap from a local electronics supply store for 79cents.
The only problem is that you need to have a soldering pencil/iron, a solder ******/wick and a small amount of solder.
Steps I had to take on my oven:
- Flip the AC breaker supplying the oven to off to be save
- remove 3 screws on top and 4 on the bottom of the display panel
- gently pull out the display panel and unplug the 2 cables to the display
- unclip the ribbon cable to the display module
- unclip the module itself by pushing on the 2 black tabs
- locate C3
- unsolder C3 and replace with new Cap- keeping the polarity strip the same as theh old Cap
- reasemble in reverse order.
It took me all of 20 minutes. It may sound difficult but is very easy if you have the tools
We own a Jenn-Aire model W27400W oven. The display module has
gradually gone dim over a period of several months prior to the end of
the warranty, and the display is no longer visible. It is apparent
that several Jenn-Aire oven models use the same display. Does Anyone
else have the same problem, and If so, are they willing to join a
class-action suit against Jenn-Aire with us?
Had the same problem last week - called DCS (which automatically transferred me to Fischer-Paykel) and was able to order the part from them. They knew exactly what it was, and shipped to me in CA from CA, it was less than $90. Just installed it, and the new one works swell. One suggestion - I drew with a Sharpie on one side of each of the three parts that plug into the board to help align the new one, and to install the wide ribbon cable (not really a cable, but you'll know what I mean), pull up on the two side pieces and the ribbon pulls right out. Keep it up and slide the new one in and then push the black piece down. That was the only part that took me a minute to figure out.
I found capacitor c3 (68 uf 35 volt) had leaked and dried up, causing the display to fail. I unsoldered and tested c1, c4, c7, and made sure they were good, using a digital multimeter with the ability to test capacitors. C3 also had visible signs of leakage. Works like a charm again, and the display is bright like new!