E12
SMEG
Rinse Cycle Incomplete / Flow Sensor Error
E12 is displayed and the machine cannot complete a rinse or self-clean cycle.
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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
Partially blocked flowmeter, Scale buildup in rinse circuit, Faulty flowmeter sensor, Air in hydraulic system
How to Fix / Troubleshooting
Safety first: Unplug the machine before any internal inspection.
- Run multiple rinse cycles: Fill the tank with fresh water and run several rinse or hot water cycles to purge air and minor debris.
- Descale machine: Perform a full descaling cycle with SMEG-approved descaler to clear scale from the flowmeter and lines.
- Check water quality: Very hard water can cause rapid scale buildup. Consider using filtered or softened water.
- Inspect flowmeter (advanced): With the cover removed, locate the flowmeter in the inlet line. Check for kinks in hoses and signs of scale. Replace the flowmeter if it appears damaged or if E12 persists after descaling.
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Repair Difficulty
Medium
3/5
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