William W Madison , WI January 16, 2016 Appliance: Model THERMADOR COOKTOP---20+ YEARS OLD. The left front gas burner of our cooktop would't ignite inspite of normal ignition/sparking at all four burners I ordered a replacement gas solenoid valve, which arrived the very next day with only standard shipping! The shipped part was exactly what was needed, and I also ordered 4 replacement O-rings to replace the original dried out ring for each burner base. These parts also arrived within a few days and were the exact parts needed. The service and advice received was commendable. Thanks for the great job. 10 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes