Krups Nescafé Dolce Gusto Lumio KP130110 Service Manual page 32

Check
procedure
9.1 Hot water temperature is
-
-
9 Prepare a
beverage  p. 24
(Set up for temperature
measurement  p. 72)
9.2 Cold water temperature
at outlet is too high compared
with water tank temperature?
10.1 Leakage at extraction
head?
10.2 Water underneath
coffee machine?
10 Check for leaks
and/or flow rate
while preparing a
beverage ( p. 76)
10.3 Flow rate out of range?
(Set up for flow rate meas-
urement  p. 72)
32
T R O U B L E S H O O T I N G
Symptoms
too low (less than 70°C /
158 °F) or
too high (more than
95°C / 203 °F)?
Lumio service manual
Action / repair work
YES - a) Fluid system scaled?
YES - b) NTC temperature
sensor (32) defective?
YES - c) Flow rate of pump out
of range?
YES - d) Valve malfunction?
YES - Valve malfunction?
NO - Go to point 10
YES - a) Capsule holder (3)
leaking?
YES - b) Pressure hoses
damaged or leaking at connec-
tions?
YES - a) Pressure hoses, water
tank connector tube or silicone
elbow leaking?
NO - Go to point 10.3
YES - b) Pump outlet leaking?
YES - a) Fluid system scaled?
YES - b) Injector in capsule
holder scaled or blocked?
YES - c) Water tank valve dirty
or defective?
YES - d) Filter in water tank
connector blocked?
Further action /
repair work
YES - Descale fluid system
( p. 89)
NO - Go to point b)
YES - Replace NTC
temperature sensor  p. 49
NO - Go to point c)
YES - Replace pump (19)
( p. 45)
NO - Go to point d
YES - Replace cpl. coffee
machine
NO - Go to point 9.2
YES - Replace cpl. coffee
machine
YES - Replace capsule
holder
NO - Go to point b)
YES - Replace cpl. coffee
machine
NO - Go to point 10.2
YES - Replace leaking
tubes or pressure hoses
with clips (26).
NO - Go to point b)
YES - Check pump outlet
and O-ring, re-assemble
with correct torque ( p. 36).
Replace pump (19) if
necessary ( p. 45).
NO - Go to point 10.3
YES - Descale fluid system
( p. 89)
NO - Go to point b)
YES - Deblock injector with
cleaning needle  p. 88
and descale again  p. 89
NO - Go to point c)
YES - Clean water tank
valve or replace water tank
NO - Go to point d)
YES - Clean or replace
water tank connector (20)
( p. 55)
NO - Replace pump (19)
( p. 45)