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 factory-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 factory-certified Thermador technicians carry genuine OEM parts and serve all 50 states with a 30-day labor warranty.
