A Star Burner that clicks repeatedly without lighting is a routine, well-understood fault on Thermador Pro ranges — here’s what’s usually behind it.
Ignition Faults Are Most Common
An igniter that’s dirty, wet, or worn is the most frequent cause, and shows as an E1 error code on models with a display. Cleaning the igniter and burner cap resolves a meaningful share of these on its own.
When It’s a Gas Valve Shutoff
If clicking continues without resolving, the range’s safety system may shut off the valve entirely, showing as E2. This needs a technician — don’t keep attempting to relight it.
The One Scenario That’s Urgent
If you ever smell gas, stop immediately, don’t attempt to relight the burner, ventilate the area, and shut off the gas supply.
Getting It Fixed
For routine igniter issues, visit our range repair page to book a visit.