What Water Filter Symbol Flashing Means
Thermador's refrigeration troubleshooting page lists a flashing water filter symbol as a replacement reminder or a sign the filter is not seated. On some models the symbol keeps flashing until LIGHT / FILTER and SUPER COOL are pressed together. Older 800-era columns show text such as "The filter has to be changed immediately." instead.
Common Causes of Water Filter Symbol Flashing
- Filter reached its service interval
- Filter installed incorrectly
- Reminder not cleared after a new filter went in
🔧 One Safe Check You Can Try
Replace the filter or reseat it until it locks. Then clear the reminder with the button combination your manual gives; if it keeps flashing, the reset step was probably missed.
⚠ Why You Shouldn't Go Further Than That
- A symbol that will not clear after a correct reset suggests a control or keypad problem, which is diagnosed on site.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.