⚠ What This Means
The display shows a message to replace the water filter. The filter capacity has been exhausted or 12 months have elapsed since the last change.
🔧 How to Fix
- Set the function selector to S (settings).
- Select "Water filter change" with the rotary selector and confirm.
- Remove the old filter cartridge.
- Install the new filter cartridge (GF 121 110).
- Confirm installation and set the capacity of the new cartridge (100-9000 litres).
- Confirm to clear the reminder message.
🛒 Replacement Parts for This Fix
Gaggenau Replacement Filter Cartridge
GF 121 110
Gaggenau Water Descaling System
GF 111 100 (filter head + cartridge)
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