Saeco SE-50 Operation And Maintenance page 39

English
Navigate through the "CLEAN" menu using the "Clean"
button and select "HW CLEAN".
Press the "Programming" button to confirm.
Rotate the hot water knob counter-clockwise.
The machine automatically performs the complete
descaling process of the hot water circuit. If there is not
enough water to complete the procedure, refill the tank
up to the level indicated by MAX.
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