When to replace
Every 6 months or when the filter indicator light turns on. If ice production drops, water flow from the dispenser slows, or ice/water develops an off-taste, replace the filter regardless of the indicator status.
Locating the filter
On most Thermador models, the water filter is located inside the refrigerator compartment — either in the upper-right corner (pull-down housing) or in the base grille at the front bottom of the unit. Check your model’s manual for the exact location.
Replacement steps
1. Turn off the ice maker. 2. Turn the old filter counterclockwise (or press the release button, depending on model) and pull out. 3. Remove the cap from the old filter and transfer it to the new one (if applicable). 4. Insert the new filter and turn clockwise until it locks. 5. Run 3 gallons of water through the dispenser to flush the new filter (the water may be cloudy initially — this is normal). 6. Reset the filter indicator.
Resetting the filter indicator
Press and hold the filter reset button for 3-5 seconds until the indicator changes from red to green. The exact button varies by model — check the control panel for a filter icon or refer to the manual.
Using genuine filters
Thermador recommends genuine replacement filters for proper flow rate and contaminant reduction. Third-party filters may fit physically but can restrict water flow (causing low ice production) or fail to meet NSF certification standards for contaminant removal.
Need professional Thermador Refrigerator service?
If troubleshooting doesn’t resolve the issue, our factory-certified Thermador technicians can help. We service all Thermador Refrigerator 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 Refrigerator repair service — certified technicians in all 50 states
- Thermador error code database — search all Refrigerator 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 refrigerator 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 refrigerator 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.
