No ice production
Check the water supply valve — is it fully open? Inspect the water filter — a clogged filter dramatically reduces water flow. Check if the fill tube is frozen (a warm washcloth can thaw it). Verify the ice maker is turned on (some have a small switch or lever). Check if the bin-full sensor is blocked by frost.
Small or hollow ice cubes
Low water pressure is the most common cause. The inlet valve needs at least 20 PSI to fill the ice mold properly. Replace the water filter — a restricted filter reduces flow. Check for a partially frozen fill tube allowing only a trickle of water.
Ice tastes bad
Replace the water filter (every 6 months). Empty the ice bin and discard stale ice. Clean the bin with warm water and baking soda. If taste issues persist after a fresh filter and bin cleaning, the water supply itself may need testing.
Water leaking
Check all water line connections — the supply line, the inlet valve connections, and the drain line. A cracked fill tube can leak during the fill cycle. If water pools only during ice making (not continuously), the fill valve may be dripping.
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.
