E11
Rancilio
Internal Leak / Drip Tray Sensor Fault
Machine displays E11 and disables brewing; often associated with internal leak detection (if equipped).
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Water in base pan triggering leak sensor, Faulty or contaminated leak sensor, Cracked silicone hose or fitting, Loose boiler or pump connection
How to Fix / Troubleshooting
Safety: Unplug the machine. Water inside the chassis can contact live parts.
- Check drip tray and base: Remove the drip tray and inspect the base pan for standing water. Dry thoroughly with towels.
- Locate leak source: With covers removed, visually inspect all hoses, boiler fittings, pump connections, and solenoid valves for signs of leakage or mineral trails.
- Tighten or replace fittings: Gently tighten hose clamps and compression fittings. Replace any cracked silicone hoses or O‑rings.
- Clean leak sensor: If your model has a float or conductivity leak sensor, clean it of coffee residue or scale and ensure it moves freely.
- Test operation: After drying and repairs, run the machine while observing for leaks. If E11 returns with no visible water, the leak sensor itself may be faulty and should be replaced.
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Repair Difficulty
Medium
3/5
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