Because a Thermador range shares control electronics between its cooktop and oven cavity, a fault can originate on either side — a Star Burner that won’t ignite (often E1, an ignition failure), a gas-safety shutoff (E2), or an oven temperature sensor fault (E3/E4). E9 typically points to the internal cooling fan not running properly during heating cycles. Our technicians diagnose both sides in a single visit.
We see the same categories of faults as wall ovens (temperature sensors, control boards) plus range-specific issues like igniter wear and gas valve faults.
Common Range Problems
Burner won't ignite or clicks continuously
Oven side won't reach temperature
Uneven flame or a burner that won't stay lit
Display shows an E-code
Self-clean cycle won't complete
Control panel unresponsive
Range Error Codes
Recognize a code on your display? Look it up before you unplug anything or attempt a repair.
E1
Thermador Range E1 Error Code
E2
Thermador Range E2 Error Code
E3
Thermador Range E3 Error Code
E4
Thermador Range E4 Error Code
E5
Thermador Range E5 Error Code
E9
Thermador Range E9 Error Code
E011
Bosch Range E011 Error Code
E028
Bosch Range E028 Error Code
E118
Bosch Range E118 Error Code
E029
Bosch Range E029 Error Code
Popular Thermador Range Models
Thermador PRD304WHU
Model # PRD304WHU
Thermador PRD486WDHU
Model # PRD486WDHU
Bosch HGI8054UC
Model # HGI8054UC
Bosch HII8055C
Model # HII8055C
Why Trust Us With Your Thermador Range
- Factory-trained on Bosch range control systems and diagnostics.
- Genuine OEM parts stocked for the most common failures.
- Upfront flat-rate pricing, approved by you before we start.
- 30-day workmanship warranty on every repair. Parts may carry the manufacturer's warranty where applicable.