PROBLEMS
The sensor could not work properly.
Example:
The light is always orange, as the sen-
1
sor feels the filter holder presence, also
in absence of it: sensor in short circuit,
needs to be replaced.
2
The light is mostly OFF, and it is ON only
with some movement of the filter hold-
er. It could mean that the sensor is not
properly flush with the inner of the group
head: needs to be moved closer.
4. 2. 1 R EM OVAL OF T H E FI LT ER
H O LDE R P RE SEN C E SE NSOR
To remove the sensor, it is necessary to:
Remove the cup holder surface, the side
1
panels, the drip tray, the lower front pan-
el and the group cover, as explained in
Chapter 3.
2
Cut the clamp and unplug the sensor
wire from its extension.
Cut the clamp of the sensor wire and ex-
3
tract the wire.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
IN
N
N
F
F
F
U
U
U
S
S
IO
O
O N
O
N
N
G
G
G
R
R
O
O
O
U
U
U
U
U
P
P
P
P
11 11
12
12
13
13
04
47
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