JJW8230DDB Jenn Air double oven. Black. Digital display. The only buttons working on the display are the Cancel buttons. Display still shows time, but I can not set the time (the clock button does not work either). I can not turn the oven on. I can not turn the oven lights on by the buttons on the control panel - however, those lights do come on when the oven doors are opened. Thank you.

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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.

F1 Power to element relay energized during time of day display.
1. Wiring harness shorted.
2. Or change power relay board (PRB).

Note: for double ovens, change second oven board.

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.

More then likely your electronic clock control board is going bad. After turning the power off, you can also try cleaning the connectors on the clock board and make sure the connectors are tight. 
 

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.

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?
Steve Patterson
303-256-8494
[email protected]

Try http://www.applianceaid.com/fault_codes.html

Try http://www.applianceaid.com/fault_codes.html