E1 — Harvest cycle failure
Ice formed but couldn’t be released from the evaporator plate. Check the bin (overfull?), reset power. If persistent, the harvest motor or thermostat needs service.
E2 — Water fill failure
No water detected during fill cycle. Check supply valve, water filter, and line for kinks. Most common fix: replace a clogged water filter.
E3 — Compressor fault
Compressor not running or not cooling adequately. Listen for clicking (start relay issue). Check circuit breaker. Professional diagnosis required — sealed system work.
E4 — Bin sensor fault
Level sensor not detecting ice correctly. Clean the sensor area — frost or debris blocks the infrared sensor. If cleaning doesn’t fix it, sensor needs replacement.
E5 — Water leak detected
Water in the base pan. Shut off the ice maker and water supply immediately. Check all connections for leaks. Do not operate until the leak source is found and repaired.
E6 — Filter replacement
Timer-based reminder — not a fault. Replace the water filter and reset the indicator (press and hold the reset button for 3 seconds).
Need professional Thermador Ice Maker service?
If troubleshooting doesn’t resolve the issue, our factory-certified Thermador technicians can help. We service all Thermador Ice Maker 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 Ice Maker repair service — certified technicians in all 50 states
- Thermador error code database — search all Ice Maker 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 ice maker 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 ice maker 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.
