Measuring Water Hardness - DeLonghi EC900 Bedienungsanleitung

6.5 Water hardness
To set the one of the 3 levels of water hardness, press
button:
Water Hardness Corresponding
Test Result indicator light
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6.6 Measuring water hardness

The (B3) indicator light comes on following a predetermined
period of operation that depends on a water hardness setting.
The machine can also be programmed according to the actual
hardness of the local water supply, in which case descaling may
be required less frequently.
• Remove the water hardness test indicator paper (A17)
from its pack.
• Immerse the paper completely in a glass of water for one
second.
• 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.
7. CLEANING
Important: Before maintenance or cleaning of the appliance,
turn it off, unplug from the main socket and allow to cool.
Do not use solvents, abrasive detergents or alcohol to clean the
coffee machine.
Do not use metal objects to remove encrustations or coffee de-
posits as they could scratch metal or plastic surfaces.
None of the components or accessories is dishwasher safe.
If the machine is not used for more than one week, before using
it again, we strongly recommend you perform a rinse cycle.
The following parts of the machine must be hand cleaned and
dry regularly:
drip tray (A8): the drip tray should be emptied and
•
cleaned after each use or when the level indicator (red)
rises through the metal grid.
Remove the drip tray, empty the water and clean the drip
tray with a cloth, dry and then reassemble the drip tray.
cups filter (A15), (A16): After using the appliance, always
•
rinse the filters under abundant running water. Use the
brush (A9) to clean (fig. 13).
• coffee spout (A7): After every 200 coffees, rinse the cof-
(B4)
•
Level
1
soft water
2
medium water
3
hard or very hard
water
•
8. DESCALING
Before use, read the instructions and the labelling on the des-
caler pack.
It is important to use De'Longhi descaler only. Using unsuitable
descaler and/or performing descaling incorrectly may result in
faults not covered by the manufacturer's guarantee.
Descaler could damage delicate surfaces. If the product is acci-
dentally spilt, dry immediately.
•
8
fee spout by delivering about 0.5 l of water from the coffee
spout (press the (B6) button without using ground
coffee).
water tank (A2): Clean the water tank regularly (about
once a week) and whenever you replace the water softener
filter (if present) with a damp cloth and a little mild wash-
ing up liquid, especially internally in the sensor area (fig. 12);
rinse with running water.
steam wand (A5): After every use, remove with a soft
damp cloth any milk residues from the steam wand. Turn
the steam dial (A4). The appliance delivers water from the
steam wand.
Wait that the steam wand cool down and open the hole of
the nozzle with the cleaning needle (A10) (fig. 13).
Descale the machine when the
turns on.
12
13
(B3) indicator lights