DeLonghi EC155 - Manual (Page 9)

10
CLEANING AND MAINTENANCE OF THE
FILTER
About every 200 espressos or when the espresso drips
out of the filter holder or not at all, clean the ground
coffee filter holder as follows:
• Remove the filter from the filter holder.
• Clean the inside of the filter holder. Never wash in
a dishwasher.
• Remove the filter cap (fig. 22) by unscrewing in the
direction indicated by the arrow on the cap.
• Remove the filter from the container by pushing it
from the cap end.
• Remove the gasket.
• Rinse all components and clean the metal filter
thoroughly in hot water using a brush (fig. 23).
Make sure the holes in the metal filter are not
blocked. If necessary, clean with a pin (see fig. 24)
• Replace the filter and gasket on the plastic
disk as shown in fig. 25. Make sure to insert the pin
on the plastic disk into the hole in the gasket
indicated by the arrow in fig. 26.
• Replace the resulting assembly in the steel filter
container (fig. 26), making sure the pin is inserted
into the hole in the support (see arrow in fig. 26).
• Finally, screw on the cap (fig. 27).
Failure to clean as described above invalidates the
warranty.
CLEANING THE BOILER OUTLET
About every 300 coffees, the espresso boiler outlet
must be cleaned as follows:
• Make sure the appliance is not hot and that it is
unplugged from the outlet.
• Using a screwdriver, unscrew the screw connecting
the espresso boiler outlet filter (fig. 28);
• Clean the outlet filter thoroughly in hot water using a
brush.
Make sure the holes are not blocked. If necessary,
clean with a pin (fig. 24).
Failure to clean as described above invalidates the
warranty.
IMPORTANT: during cleaning, never immerse the
coffee machine in water. It is an electrical appliance.
DESCALING
You are recommended to descale the espresso machine
about every 200 coffees.
You should use a commercially available product
specifically for descaling espresso coffee machines.
If such a product is not available, proceed as follows.
1.Fill the tank with 17 ounces of water.
2.Dissolve 2 spoonfuls (about 1 ounce) of citric acid
(obtainable online or in a pharmacy).
3.Rotate the selector knob to the position and wait
until the OK indicator light comes on.
4.Make sure the filter holder is not attached and
position a container under the boiler outlet.
5.Rotate the selector knob to the position (fig. 7)
and deliver half the solution in the tank.
Then interrupt the flow by rotating the selector to the
"O" position (fig. 14).
6.Leave the solution to work for about 15 minutes, then
deliver the rest of the water in the tank.
7.To eliminate residues of solution and scale, rinse the
tank well, fill with clean water and replace in
position.
8.Rotate the selector knob to the position and
deliver the water until the tank is completely empty;
9.Rotate the selector knob to the position and
repeat operations 7 and 8 again.
Repair of damage to the coffee machine caused by
scale is not covered by the guarantee unless descaling
is performed regularly as described above.