[raymo@57]

thermador Knobs will not light burners. They use to click then burner would light. The igniters would click, now we light them with a lighter. They don't click, and griddle doesn't get hot know either. thank you

[Gene]

The first thing I would check is 120V at the power outlet and the plug connection.

Gene.

[raymo@57]

the electric is good the ignitor's on all 4 burners worked on and off then they went out all together. Then one day they just started woking again and then a few day's later they went out! what do you think

[Gene]

Did you check the outlet or you just think it's good?

Gene.

[Servicer]

Does the red light near the left side burners light up, or does gas flow from the left side burners when it's not sparking?
If not, then Gene is on the right track, and it sounds like a power supply issue. You can use and extension cord and plug it into a known-good outlet and test it. Or it could also be a simmer control starting to go bad. This component sends power to the spark module to start the sparking.
If the light does turn on every time there may be a problem with the spark module.