14
DESCALING
You are recommended to descale the coffee 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 half a litre of water.
2.Dissolve 2 spoonfuls (about 30 grams) of citric acid
(obtainable from chemist's).
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 recipient under the boiler outlet.
5.Rotate the selector knob to the position (fig. 8)
and run off 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
run off 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 run
off 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.
