Troubleshooting - DeLonghi EC155 Manual

Problem
espresso coffee does not flow out
espresso coffee drips from the ed-
ges of the filter-holder instead of
through the holes
The espresso coffee is cold
Loud pump noise
The coffee crema is pale or very
thin (it flows quickly from the
spout)
The milk does not froth when ma-
king a cappuccino
The appliance switches off
Possible cause
No water in the tank
The holes in the filter-holder are
blocked
The espresso boiler outlet is blocked
The filter-holder is inserted incorrectly
The espresso boiler gasket has lost
elasticity
The holes in the filter-holder spout are
blocked
The espresso ok light is not on when
the coffee dial is rotated to coffee
delivery
Pre-heating has not been carried out
The cups have not been pre-heated
The water tank is empty
The tank is inserted incorrectly and the
valve on the bottom is not open
There is an air blockage in the tank.
The ground coffee has not been
sufficiently pressed
Not enough ground coffee
The coffee is not ground finely enough
Incorrect type of ground coffee
The milk is not cold enough
The cappuccino maker is dirty
The auto switch off intervened
11

troubleshooting

Solution
fill the water tank
clean the holes in the filter-holder spouts
clean as indicated in the "cleaning the boiler
outlet" paragraph
Attach the filter-holder correctly and turn it fully
home firmly
replace the espresso boiler gasket. contact
De'Longhi customer experience
clean the holes in the spouts
Wait for the ok light to switch on
Pre-heat as indicated in the paragraph "How to
Prepare espresso coffee"
Pre-heat the cups using hot water
fill the water tank
Press the tank lightly to open the valve on the
bottom
follow the instructions for "Production of Hot
Water" paragraph until water is delivered
Tamper the ground coffee more (fig. 10)
Increase the amount of ground coffee
only use coffee ground specifically for espresso
coffee machines
change the quality of the ground coffee
Always use milk at refrigerator temperature
carefully clean the holes in the cappuccino maker,
in particular, those indicated in figure 19
Press the oN/off main switch to turn the
appliance on