On my Jenn_air JES8850BCS oven some of the touch buttons on the control panel do not work.

SOURCE: Jenn Air slide in range JES9750AAB - Touch Pad

put on tree belt . having the same problems replaced ERC $200.00 now they are telling me touch pad touch pad is $240.00 .the stove cost $1300.00. $1740.00 how much more will i have to put in this stove

SOURCE: jenn-air svd48600w

If your display has gone dimmer and dimmer or just gone out it is probably the display board. There are a few capacitors on the back of the board. There is one that is 68 Microfarad 35 Volts. It is common for this one to go bad. I replace it with a 68 Microfarad 50 Volt rated one and that usually solves the problem.

SOURCE: No electrical power to ovens and control panel.

It appears that you have lost one half of your power. That is you no longer have 220 volts but do have 110, enouch to power the electronic ignition. I would check the circuit breaker first to see if it is sending power on both hot wires or just one.

SOURCE: I have a jenn air oven and stove top. the

Just a suggestion, turn the breaker off to the range and leave off for 30 secs. This may reset the board. That's the easy way. If that doesn't help I'll try to find more on it.

SOURCE: Jenn-Air JDS8850BDS control panel malfunction

You need a new control board. I bought similar range in 2004 and I just got my 3rd control board. Heating the oven over 400 degrees and using the self-clean function kills the board.