I have a Thermador Model SGC304R Gas Cooktop. The front right burner will not light. The gas valve does not energize. Believe potentiometer likely bad...its the one with the settings that has the xlo incremental burner. How do I remove the steel top off of the counter? DO I just pry off or do I need to attempt to loosen the nuts on each burner? Once I get access to underside, what is easy way to test to see if potentiometer bad? I assume just check with a meter?

SOURCE: Thermador Gas Cooktop Won't Stop Clicking : SGC304RS

theres a part in the cooktop called a spark modual. replace it. when i goes bad the problem your having is what it causes

SOURCE: Electric coils for old Thermador cooktop Model #TMH45

i just checked repairclinic.com and they seem to have a lot of parts for Thermador. you just need your model number. if the burners look anything like this, then you might be able to buy aftermarket burners a lot cheaper at lowes or home depot. thermadore parts are very expensive.

SOURCE: Cleaning Thermador Cooktop?

To clean the stainless around the star burners try applying Easy-Off oven cleaner around the stars with a Q-tip (spray the cleaner onto the stainless surface first because it's very hard to control the spray output). The cleaner will make your stainless sparkle and the Q-tips allow you to get close enough while controlling the application. Scrub gently with the Q-tip and the stains will disappear within minutes. Wash thoroughly with a wet cloth. I've used this on my older model Thermador stainless cooktop for 5 years.

SOURCE: natural gas to lp conversion kit for a Thermador GGNCV30 cooktop

Your LP gas provider will get the orifices for you just call them with the model number of your thermador. They have gotten them for me many times.

Mark

• 704 Answers
• Posted on Sep 09, 2009

SOURCE: One igniter won't work right on my gas cooktop.

If you're not getting the ignitor sparking (you should hear it) when you turn the burner knob on for that burner, it could be that either the ignitor is dirty or caked with some gunk and needs to be cleaned.

The other issue could be that the ignitor is faulty and needs to be replaced. If you want to confirm a faulty ignitor before ordering a new one, you can swap it out with one of the other ignitors on the cook top. Be sure to unplug the cook top from the outlet thou, to prevent getting a shock, as those little sparkers can give you a pretty good jolt!

Just remove the grates and burners to get at the ignitor for cleaning it. To get at the ignitor, youll need to go under the cabinet or counter that the cooktop is installed on in order to remove the ignitor and swap it with one of the other ones. You'll see that these are held in place with a retaining clip you can remove with a flat bladed screwdriver, etc.

If you find that the one that isn't working is faulty, you can order one from your local appliance service store, or get one online. www.searspartsdirect.com lists parts for almost every appliance there is, just enter in the full model number to get a parts list, etc.

Hope you find this Very Helpful and best regards!

Testimonial: "I was able to confirm that the igniter was not dirty. It looks like I'll have to pull the oven out to access the underside of the cooktop to complete."