Setting Water Hardness; Measuring Water Hardness - DeLonghi ECAM51 55 Series Instructions For Use Manual

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A B
B
A
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A series of rinses and pauses is performed automatically to
remove all the scale residues inside the coffee machine;
After about 25 minutes, descaling stops;
11. "Rinse tank and fill with water": the appliance is now
ready to rinse with fresh water. Empty the container used
to collect the descaler solution. Extract the water tank,
empty, rinse under running water, fill with fresh water
up to the MAX level and put back in the appliance: press
;
12. "Place 2L container empty under spouts": place the con-
tainer used to collect the descaler solution empty under
the coffee spouts and hot water spout (fig. 35) and press
;
13. "Rinsing Confirm?": press
14. "Rinsing underway": hot water is delivered first from the
coffee spouts, then from the hot water spout;
15. When the water in the tank has run out, empty the con-
tainer used to collect the rinsing water;
16. "Rinse tank and fill with water": extract the water tank and
fill with fresh water up to the MAX level. Press
17. (If the filter is installed) "Insert filter": put the water sof-
tener filter (if previously removed) back in its housing in
8. "Empty drip tray": Re-
move, empty and replace
the drip tray (A24) and
grounds container (A20).
Press ;
9. "Place 2L container empty
under spouts": Place an
empty container with a
minimum capacity of 2
litres under the hot water
spout (C6) and coffee
spouts (A14) (fig. 35).
Press ;
Important! Danger
of burns
Hot water containing acid
flows out of the coffee spouts
and hot water spout. Take care
to avoid contact with splashes
of this solution.
10. "Descaling underway":
The descale programme starts
and the descaler liquid comes
out of the hot water and coffee
spouts.
;
;
the water tank, and replace the tank in the appliance and
press ;
18. "Place 2L container empty under spouts": place the con-
tainer used to collect the descaler solution empty under
the hot water spout. Press
19. "Rinsing Confirm?": press
20. "Rinsing underway". Hot water comes out of the hot water
spout;
21. "Empty drip tray": At the end of the second rinse, remove,
empty and replace the drip tray (A24) and grounds con-
tainer (A20). Press
22. "Descale complete": press
23. "Fill tank": empty the container used to collect the rinse
water, remove the water tank and fill with fresh water up
to the MAX level, then put back in the appliance.
Descaling is complete.
Please note!
• If the descaling cycle is not completed correctly (e.g. no
electricity) we recommend repeating the cycle;
• After descaling, it is normal for the grounds container
(A20) to contain water;
• If the water tank has not been filled to the MAX level, at
the end of descaling, the appliance requests a third rinse to
guarantee that the descaler solution has been complete-
ly eliminated from the machine's internal circuits. Before
starting rinsing, remember to empty the drip tray.
• The appliance may request descaling cycles at very short
intervals. This is normal and due to the appliance's ad-
vanced control system.

16. SETTING WATER HARDNESS

The descaling request is displayed after a period of time
established according to water hardness.
The machine is set by default for a hardness level of 4. The ma-
chine can also be programmed according to the hardness of the
mains water in the various regions so that the machine needs to
be descaled less often.

10.1 Measuring water hardness

1. Remove the "TOTAL HARDNESS TEST" indicator paper (C1)
from its pack (attached to the English instructions);
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 1
level;
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