DeLonghi EC9155 Service Manual page 8

6.2.USER INTERFACE TEST
In this mode while the button is pressed the correspondent led switch on, the potentiometer knobs need to be rotated on the most anti-clockwise position
in order to not create interference. When the potentiometer knob will be rotate clockwise (only one at a time) the leds switch on according the next
tables.
SWITCH
PUSHED
X1/X2
OK
TEMPERATURE
STEAM
COFFEE TASTE POTENTIOMETER
BEVERAGE LENGTH POTENTIOMETER
AMERICANO/LONG
[8]
X1/X2
ON ALTERNATING
OFF
OFF
OFF
KNOB POSITION
>=180
120 <= ADC <
180
60 <= ADC < 120
ADC < 60
KNOB POSITION
DESCALE
HOT WATER
BLACK
ESPRESSO
LEDS STATE
OK
(WHITE/ORANGE)
OFF
ON ALTERNATING
OFF
OFF
DESCAL E
OFF
OFF
ON
OFF
LEDS STATE
ESPRESS O HOT WATER
OFF OFF
OFF
ON
OFF
OFF
ON
OFF
Doc. nr.: DSDL_21010_A
TEMP1/2/3
OFF
OFF
ON ALTERNATING
OFF
LEDS STATE
TAN K X2
OFF ON
ON OF F
OFF OFF
OFF
OF F
AMERICAN O
OFF
OFF
ON
OFF
STEA
M
OFF
OFF
OFF
ON