Saeco RI9722/11, Service Manual

Page: 176 / 224

6. FAULTS INCANTO S-CLASS
Page 2/3 REV.5 FEB.2005 Saeco International Group
Part Fault Cause
MS defective
Motor defective
Motor resistor defective
Loose motor connections
Gear wheel defective
G
ea
rm
o
to
r
Brewing unit malfunctions
- does not move to home position
Electronic system defective
Plunger stiff
Gasket of valve plug swollen
(black O-ring)
B
re
w
in
g
u
n
it
Sluggish / obstructed
Gasket of plunger swollen
HWS valve does not open
(no water or steam dispensing
possible) Securing tab on tea nozzle
spout broken / bent
Water drips from steam pipe
(with closed valve) Valve gasket calcified
Water drips from steam pipe shaft Fracture in steam pipe
Water leakage from HWS spout Defective O-ring
H
WS
s
y
st
em
Water leakage at joint Defective O-ring
Varying cup filling volume
O
v
er
p
re
ss
u
re
v
a
lv
e
More water in drip tray
Overpressure valve does not
seal / calcified
Defective pump
Dry coffee in dregs drawer / water
low indicator (fault LED)
Thermal fuse defective
P
u
m
p
Water leakage at overpressure
valve threaded joint Hairline crack in joint area