Miele
Water Tank Detection Issue (No Error Code)
Display repeatedly shows 'Fill water tank' even when tank is full
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Possible Causes
Dirty or stuck float in water tank, misaligned tank, weak float magnet, partially failed tank sensor
How to Fix / Troubleshooting
User-level steps:
- Remove the water tank and empty it completely.
- Rinse the tank and float area; ensure the float moves freely up and down.
- Clean the tank seating area on the machine.
- Refill and reinsert the tank firmly.
Technical checks:
- If the issue persists, test the tank sensor (reed or Hall) and replace if intermittent.
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Repair Difficulty
Easy
2/5
Required Part
Water Tank / Water Tank Sensor
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