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Good afternoon. My name is ***** ***** I'll be assisting you with your cooktop today. The left burners are your simmer control burners which have a separate simmer control module as well as potentiometers to control the burners clicking and gas. If the left burners are sparking when they are not supposed to then one of your parts has failed. You'd want to start by replacing the potentiometers for both left burners because they work together so even if the problem is only the left rear burner, you want to replace them both. These potentiometers are the little switch boards behind the knobs under the cooktop that slide onto the knob shafts. Below is a link to the part and you'll want to replace 2 of them. Be sure to unplug the unit before servicing it or you will definitely further short out the simmer system.
CLICK HERE for part
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Hello again. I'm just following up because I haven't heard back from you and I see this question is still open and unrated. Is there anything else I can help you with?
The answer is still the same. The clunking noise is the electronic gas valve opening and closing which again is caused by the simmer control system. It's all part of the same noise. As for charges, you are charged to read my answer. I personally don't get paid without you rating me that you are satisfied.
Unfortunately I can't do that. I can only contact you through this service.
No, that's not what I'm saying. I'm saying either your potentiometers or the simmer control is bad---same as before. The gas valve shouldn't ever be making noise if you're not turning the burner on. If it's making noise then the simmer control module is sending it power and it shouldn't be. So again the answer is the same, I would replace the potentiometers first.
The potentiometers are 00422748. The simmer control module is 00422882