Oven seems to work but the display panel dark.

My 20 year old electric Jenn Air range recently flashed the F7 error code and beeped repeatedly. I shut off the circuit breaker until it cooled. The next day I turned it on and everything seemed fine. We baked a pizza and the
erro repeated when the oven was shut off.
I opened the front panel and noticed the wire ribbon connecting the front panel to the display was slightly askew. How that happened is beyond me. I pulled out the ribbon hold down clips, pushed the ribbon in all the way, and
replaced the hold down clips. The range is now working properly after replacing nothing.
The cheapest fix possible.

I have a Jenn-Air double wall oven with a very dim display light. Replaced c3 capacitor 68uf 35w - with a 100uf 50w cost $1.60 closes size available at Radio Shack and works good as new. Requires soldering onto the circuit board. I price a replacement part for $276.00.

A lot of ovens use a gas-filled vacuum flourescent display module that takes a higher voltage to drive it. The modules can get damaged or the power supply for the higher voltage (usually around 50 volts) may have failed.

Chances are the thing is only sold as an assembly...While the displays are common in auto speedometers that have digital display, those for these ovens are special with wpecial characters and background.

I think these use the same controller board as the Jenn-air units, they have a weak capacitor (C3) on the control board (Timer/control Display). Remove the top panel and look for a discolored or leaking capacitor (usually black about 1/2" high 3/8" in accross). Replace the capacitor and the problem goes away, until next time you use the self clean cycle which seems to overheat the control board and ruin the capacitor.

You need to replace the C3 capacitor on the control board

http://fixitnow.com/wp/2009/01/28/cheap-fix-for-a-dim-display-on-an-oven-control-panel/

You can replace only the C3 - it is 68uF / 35V and you can go to Radio Shack and get their part # 272-1028 - 100uF/35V one. It takes all but 10 minutes to re-solder the new one in place

Hi, this will happen over a period of time and its just heat related. the control panel isn't insulated properly and , there has been a larger than normal transfer of heat to the inside of the control panel where the circuits are housed.

If this is a problem, i recommend replacing the control board. it will fix the dim issue.

douglas9101,
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
Good Luck
K

mY 27" WALL jENN air blows cold air out the vents when on cleaning cycle. The red buttons aren't lighted. The door locks, otherwise it bakes fine. I wonder if it is really cleaning?

I replaced the C3 capacitor on the circuit board and works fine. This was mentioned in a prior post and took 5 minutes and was under $5.00 for the part.

that board supplies power to the light unit and it is very easy to replace if that is what is wrong. it can also be the led display unit also. cost about $150 each i think.