DeLonghi EC 510 - Page 6

The milk does not froth when
making a cappuccino.
•
The milk is not cold enough.
•
The cappuccino maker is dirty.
• Always use milk at refrigerator tem
perature.
• Carefully clean the pinholes in the
milk frother
The coffee cream is light-
coloured (the coffee comes out
quickly from the spout).
• The ground coffee has not been
pressed enough.
•
The quantity of ground coffee is
scarce.
•
The coffee is not ground finely
enough.
•Tamper the ground coffee down
more.
• Increase the quantity of coffee.
• Only use coffee specifically ground
for espresso coffee machines.
The coffee cream is dark (the
coffee comes out slowly from
the spout).
• The ground coffee is too tightly
pressed.
• The quantity of ground coffee is too
much.
• The espresso boiler outlet is blocked.
• The coffee is too finely ground.
• Press the coffee less.
• Decrease the quantity of ground
coffee.
• Clean the outlet as described in
“Cleaning the espresso boiler outlet”
section.
• Only use coffee specifically ground
for espresso coffee machines.
The coffee has an acidic taste. • The unit was not sufficiently rinsed
after the descaling process
procedure.
•
Rinse the unit as described in the
“descaling” section.
PROBLEM POSSIBLE CAUSES SOLUTION
Espresso coffee no longer
comes out.
• Lack of water in the tank.
• The holes in the filter holder are
blocked.
• The outlet of the espresso boiler is
blocked.
• The tank is badly inserted and the
valve at the bottom is not open.
Espresso coffee drips from the
edges of the filter holder,
instead of from its holes.
• The filter holder is badly inserted.
• The gasket of the espresso boiler has
lost elasticity.
• The holes in the filter holder are
blocked.
• Attach the filter holder correctly by
rotating firmly as far as it will go.
• Have the espresso boiler gasket
replaced at an Service Centre
• Clean the holes in the filter holder.
The espresso coffee is cold. • The ‘OK’ pilot light was not on when
the coffee delivery switch was
pressed.
• The preheating was not carried out.
• The cups were not preheated.
•Wait until the OK pilot light comes
on.
• Carry out the preheating as indicated
in the “Preheating the coffee unit”
section.
•Preheat the cups by rinsing them in
hot water.
The pump is too noisy. • The water tank is empty.
• The tank is inserted wrongly and the
valve at the bottom is not open.
• Fill the tank.
•Press the tank lightly so as to open
the valve at the bottom.
17
• Fill the water tank.
• Clean the holes in the spouts.
• Clean as indicated in the “Cleaning
the espresso boiler outlet” section.
•Press the tank lightly so as to open
the valve at the bottom.
The milk continues to come out
from the milk tank even if the
steam knob is closed.
• The cappuccino maker is dirty.
• Carefully clean the pinholes in the
cappuccino maker, in particular the
hole marked by the letter B in figure
25.