Delime your Espresso machine regularly. With normal household use the following rule applies:
*If you use soft water delime two or three times a year.
*If you use hard water delime four or five times a year.
Your water supply company can inform you about the hardness of your water.
Operate the appliance twice as indicated in section‘Espresso”. However, fill water tank l/2 full with vinegar and 1/2with water and do not fill the filter with ground coffee.
To remove any scale that has set in the inside of the frothing nozzle, let the appliance produce vinegar steam for some time.
When deliming is complete remove all traces of vinegar and scale, by operating the appliance twice with fresh cold water in the same manner. Then clean all removable items.