I have a jenn-air sealed gas cooktop jcg8430 only 1 burner lights

It sounds like you need a new spark module which controls all of the burners. It is part number W10475147. It costs around $115.00!

Hi,
Here is a tip that I wrote to give details about why your cooktop will notspark to light the burners..

Cooktop Range Stove spark ignition does not work

heatman101

The right rear burner switch is bad.

Can have below issue.

(1) Electric current is not reaching the ignitor. (wire is broken or have a leak)
OR
(2) Having problem with ignitor. (need to replace the ignitor)

OK, the best action is to call for service, if the unit was just installed, and purchased. This unit should be covered at this time, by the manufactures warranty, or store 30 day warranty. This repair should be free. The culprit will be a faulty spark ignition switch, and module. Testing is required. Once this switch, or(module), is replaced, the unit will operate correctly.

Hi JHMcdona

Most likely the electrode for the right burner is defective. As well as the switch may also be defective (is shorted because of pressing hard on it trying to make it work!!). Change the electrode and igniter switch of the right front burner.

Regards

Hi

It seems like you got water into the ignitor switches on under the knobs. Sometimes it takes 48 hours for this to dry out. Or you can pull the knobs and use a hair dryer on to dry out the switches. Also you can try to clean it. Please refer to the link and picture: Please do accept the solution and revert for further assistance. Thanks Rylee

Did you spill water near/on knobs? if so leave to dry out for 24 hours. If still clicking after 24 hours one of the switches has shorted out and needs to be replaced. You can find which one with a multi meter/condinuity test. Hope this helps...Good Luck

it may just need cleaning at where it sparks to the burner if it is sparking back down the electrode then it is cracked . Some igniters pull out others have a screw that holds them in.

One burner doesn't consistently light. Igniter sparks but not the same as the other - "good" burners spark at top of igniter and moves around to light, "bad" burner sparks toward the bottom and doesn't move much. I can use the burner by lighting with a match and it works fine. Have tried cleaning with a toothbrush without much success