Hi, I can really use your help to fix the igniters on our “Thermador Professional” 6-burner gas cooktop.

The house we moved into has an old gas cooktop, 6 burners. I've looked everywhere for a model number and I cannot find it, but you can see how it looks in the attached photos.





Gas flows normally to all burners and I can light them all with a match.

The front and back burners share a single igniter, so there are 3 igniters.

The igniter can start all the back burners normally.

But on two of the front burners the igniter will not light the gas... there is no clicking sounds and the igniter does not spark.

Since front/back share the same igniter, the igniter itself is obviously fine, so it must be some problem with the controls.

I was hoping to get in the front panel open to see the controls and trying swapping some wires to isolate the problem.

But i have two problems:

1. I cannot the front panel open! There are two screws on each side of the front panel, which i removed, but the panel does not budget. OK, it's an old cooktop with lots of sticky stuff, so probably I need to use some force. But I'm afraid to use too much force and bend something. Can anybody help me understand how do I get into the front panel to check (and eventually replace) the controls?



2. Once I'm in the front panel I'm not sure how to debug this. (which wires to swap or if there is something better to try.) As I see looking through the grease pan slot, there are some blue boxes and then the controls that the knobs are connected to. What should I test? I have a voltmeter so I can easily check voltage, continuity, etc.



Thank you for your help

 

Welcome to the forums.

I work on an occasional Thermador range.... rarely just a cooktop. I see the newer version but not yours.
The burner grates are different. I can't find a listing for yours. I need your model number.

New cooktop..... PCG366W

The ID tag should be in the section below the burners. Pick up the grates and see if you can lift the cover up.
In the link is ID help but may not help much for yours.

Thermador specs- pdf

 

Pete, thanks for your reply.
Ok, I found the model #, it is "GCT36 6".
It think it is about 20 years old.

 

Thanks. I'm looking but haven't found any useful info yet.