DeLonghi EC190 Instructions Manual page 8

Descaling
It is advisable to clean the calcium from the machine every 200
cups of coffee. It is recommended that specific (store-bought)
products for descaling of espresso coffee machines be used. If such
products are not available, it is possible to proceed as follows:
1. Fill the tank with water using 1 litre of water;
2. Dissolve 2 spoonfuls (about 30 grams) of citric acid in the
water (available from chemists);
3. Turn the selector knob to the
'OK' light comes on.
4. Check that the filter holder is not attached and place a contain-
er under the outlet of the machine;
5. Turn the selector knob to the
the solution in the tank to flow out.Then stop the flow by turn-
ing the selector to the "O" position (fig. 14).
6. Allow the solution to act for about 15 minutes, then start up
the flow again until the tank is completely empty;
7. To eliminate the remains of the solution and the calcium, rinse
the tank well, fill it with clean water and replace.
8. Turn the selector knob to the
the remaining solution in the tank to flow out (fig. 8).
9. Turn the selector knob to the
and repeat operations 7 and 8 one more time.
Repairs for malfunctioning caused by problems of calcium
build-up are not covered by the guarantee if the descaling
process described above is not carried out regularly.
Coffee Maker
position and wait until the
position and allow half of
position and allow all of
position (fig.5)
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