E1 — Induction coil fault
A specific zone’s induction coil has failed. The zone won’t heat any cookware. Other zones continue working normally. Causes: coil failure, inverter board issue, or wiring problem. Requires technician diagnosis — the glass may need removal to access the coil.
E2 — Freedom Induction sensor array error
The full-surface sensor matrix can’t detect cookware position. Remove all items, clean the surface thoroughly, try a single pan. If E2 persists, sensor array or control module needs service. This code is specific to Freedom Induction models.
E3 — Overtemperature protection
A zone shut down because the glass surface exceeded the safety limit. Remove the pan and wait 10 minutes. Ensure cooling fan beneath cooktop has clear airflow. Frequent E3 suggests the cooling fan has failed.
E4 — Cookware not detected
Not an error in the traditional sense — the zone can’t detect compatible cookware. Check with a magnet (must stick firmly to pan bottom). Ensure pan covers at least 60% of the zone. Center the pan. If compatible cookware triggers E4, the zone sensor may be faulty (rare).
E5 — Power supply voltage out of range
The cooktop is receiving voltage outside 208-240V AC. Check the circuit breaker (both poles of a double-pole breaker). If E5 persists, an electrician needs to measure voltage at the terminal block.
E6 — Touch control calibration error
Controls not responding correctly. Clean the control area thoroughly with a dry cloth. Remove anything resting on the controls. Power cycle at the breaker. If E6 persists, the touch panel or control board needs replacement.
Need professional Thermador Cooktop service?
If troubleshooting doesn’t resolve the issue, our factory-certified Thermador technicians can help. We service all Thermador Cooktop 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 Cooktop repair service — certified technicians in all 50 states
- Thermador error code database — search all Cooktop 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 cooktop 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 cooktop 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.
