DeLonghi ICM40 User Manual

1321047IDL/02.11 

De’Longhi Appliance - Via L.  Seitz, 47 - 31100 Treviso Italia

If the water in your local area is hard, lime scale will form over
time.  These deposits may affect the correct operation of the
appliance.
Models with electronic control panel: When the "ON/AUTO/OFF"
button flashes continuously, proceed with descaling.  
Models with single switch: 

It is recommended to descale the

appliance after approximately every 60 uses.

The descaling process may be performed using special
commercially available scale removers for filter coffee makers.
Follow the instructions provided with these products.
1.  Dilute the descaler in the carafe, following the directions on the

packaging of the descaler.  

2.  Pour the descaling solution in the water compartment;
3.  Place the jug on the warming plate, do not put any ground

coffee in the filter holder;

4.  Press the filter coffee ON/OFF switch, filter the equivalent of

one cup and then switch off the appliance;

5.  Let the solution work for 15 minutes, then repeat steps 4 and 5.
6.  Switch the coffee maker back on  and filter the rest of the

solution;

7.  To rinse the machine, operate it with water and without ground

coffee at least 3 times (3 complete tanks of water).

You are recommended to descale the coffee machine about every
60 uses.

Problem

Possible causes

Solution

•  The filter coffee maker

needs to be descaled

•  Descale as described in

the paragraph
"Descaling"

• The 

coffee 

maker has not

been rinsed sufficiently

• Rinse the appliance as

described in the chapter
"Descaling"