DeLonghi PrimaDonna Exclusive ESAM 6900.M Instruction Manual

21

the spout. 

11.  When “Descaling complete” “PRESS OK” is displayed, press

the OK icon. The appliance goes off.  

12.   Put the water softener filter (if present) back and fill the 

tank.  

To use the appliance, press the  

 button.

Descaling is requested after a period of time established 
according to water hardness.  
The machine is set by default for a hardness value of 4 (very 
hard water).  
The machine can also be programmed according to the actual 
hardness of the mains water in the various regions, varying the 
frequency with which the message is displayed. 

Measuring water hardness 
1.   Remove the “TOTAL HARDNESS TEST” indicator paper from 

its pack.  

2.   Immerse the paper completely in a glass of water for one 

second.  

3.   Remove the paper from the water and shake lightly.  
 

After about a minute, 1, 2, 3, or 4 red squares form, 
depending on the hardness of the water. Each square 
corresponds to one level. 

LEVEL 1
soft water 

LEVEL 2
slightly hard water    

LEVEL 3
hard water 

LEVEL 4
very hard water           

Set water hardness 
1. 

Access the settings menu by pressing the 
MENU icon. Scroll through the menu pressing 
the   

and 

  icons to select “Water 

hardness”. 

2.  Confirm the selection by pressing the OK icon.  
3.  Press  

 or 

  to set the water hardness identified 

using the indicator paper (see figure in the previous 
section).

4.  Press the OK icon to confirm the setting.  
5.  Press the ESC icon to exit the menu. 
The machine is now reprogrammed with the new water 
hardness setting.  

Certain models are fitted with a water softener filter. If this 
is not the case with your model, you are recommended to 
purchase one from De’Longhi Customer Services. To use the 
filter correctly, follow the instructions below.  

Installing the filter 
1.   Remove the filter from the packaging. 

 
2.   Turn the date indicator 

disk until the next 
two months of use are 
displayed. 

The filter lasts about two 
months if the appliance is 
used normally. If the coffee 
machine is left unused with 
the filter installed, it will last a 
maximum of three weeks. 
3.   To activate the filter, let 

tap water go in the hole 
of the filter as shown in 
the figure as long as the 
water comes out from 
the side openings for 
over one minute (min. 
500ml).

4.   Extract the tank from the 

appliance and fill with 
water. 

5.   Insert the filter in the 

water tank and immerse 
it completely for about 
30 seconds, turning it 
upside down to enable 
the air bubbles to 
escape.

6.   Insert the filter in the 

filter housing and press 
as far as it will go.  

7.   Close the tank with the 

lid, then put the tank 
back in the machine.  

When you install the filter, you must notify the appliance of its 
presence. 
8.   Access the menu by pressing the MENU icon; 
9.   Scroll through the menu by pressing the 

or 

  icon 

until “Install water filter” is displayed.