Oven error codes (F-series)
F1 — Sensor open circuit: Oven temp sensor wire broken or element failed. Do not use oven — risk of overheating.
F2 — Overtemperature: Safety critical — oven exceeded max temp. Door locks, heating shuts off. Turn off at breaker, wait to cool. Stuck relay, sensor, or cooling fan issue.
F3 — Sensor short circuit: Opposite of F1 — sensor reads near zero ohms. Same sensor replacement needed.
F5 — Door lock failure: Self-clean lock didn’t engage/disengage. Motor seized, latch bent, or switch fault.
F7 — Convection fan: Fan not spinning in convection mode. Motor, blade, or thermal fuse issue. Oven works in standard bake mode.
F9 — Steam generator (Pro Grand): Scale buildup, empty reservoir, or generator element failure. Descale or replace generator.
Cooktop error codes (E-series)
E1 — Ignition failure: Star Burner didn’t light. Clean ports, dry igniter, check gas supply.
E2 — Gas valve shutoff: Safety activated — gas pressure issue, valve failure, or repeated ignition failures. Call a technician.
When to call a technician
F2 (safety critical), E2 (gas safety), and F1/F3 (sensor — risk of uncontrolled heating) always require professional service. F5 can wait if you don’t need self-clean. F7 allows standard baking while awaiting repair.
Need professional Thermador Range service?
If troubleshooting doesn’t resolve the issue, our certified Thermador technicians can help. We service all Thermador Range models across all 50 states with genuine OEM parts and a 30-day labor warranty. Schedule service online — same-day booking available.
Related Thermador resources
- Thermador Range repair service — certified technicians in all 50 states
- Thermador error code database — search all Range error codes
- Thermador model database — specifications and repair info by model number
- Thermador official site — official specifications, manuals, and product information
Important notes for Thermador range owners
- Always use genuine OEM parts — aftermarket components may fit but can compromise performance, safety, and warranty coverage on Thermador appliances
- Never ignore error codes — Thermador codes are diagnostic aids designed to prevent small issues from becoming major failures. Address them promptly
- Keep your owners manual accessible — it contains model-specific maintenance schedules and troubleshooting trees. Digital versions are available on the Thermador official site
- Document issues before calling — note error codes, symptoms, when they started, and patterns. This helps the technician diagnose faster
- Use surge protectors — power fluctuations damage electronic control boards. A quality surge protector protects your investment
When DIY troubleshooting is not enough
Some Thermador range issues can be resolved with the steps in this guide. However, call a certified technician immediately if you encounter:
- Gas smell (gas models) — turn off the appliance, open windows, leave the house, call from outside
- Burning smell or smoke — disconnect power immediately. Do not use until inspected
- Electrical sparking — turn off at the circuit breaker. Wiring or component failure
- Water leaking inside walls — shut off supply and call to prevent water damage
- Error codes that return after power reset — persistent codes indicate real component failure
- Sealed system issues — compressor, refrigerant work requires EPA-certified technicians
Schedule service online — our certified Thermador technicians carry genuine OEM parts and serve all 50 states with a 30-day labor warranty.
