I have a Thermadore Professional 48 " gas cooktop---on one of the units I cannot light---no spark
To properly assist you we will need your model number to help you with this. Please post your model number with a new question on the parts page. http://www.appliancepartspros.com/modelnumber_locator.aspx
What does the capacitor do?
Answer Hello Frank. The capacitor 487053 is used to store power and is used in the motor circuit for starting.