Krups Nescafé Dolce Gusto Lumio KP130110 Service Manual page 31

Check
procedure
6.2 Indicator light flashes red
rapidly (error mode)?
6 Plug into mains
(continued)
6.3 Indicator light is steady
green?
6.4 Machine is hissing after
heating up?
7.1 Selector wheel turns
flawlessly?
7.2 Bar display lights up
accordingly to movement of
7 Check HMI func-
rotary button?
tionality
7.3 Remove capsule holder
and close locking handle.
Pump starts working when
selection lever is turned left
or right?
8.1 Pump not working?
8.2 Selection lever does not
stay in cold or hot water posi-
tion?
8 Rinse coffee
machine  p. 22
8.3 No or only little water
from coffee outlet?
8.4 Locking handle can be
opened during rinsing?
Symptoms
YES - a) NTC temperature
sensor (32) defective?
YES - b) Building block (15)
defective?
YES - Heating up time is within
40 sec ( p. 71)?
YES - Replace cpl. coffee
machine
NO - Go to point 7
YES - Go to point 6.2
NO - Replace HMI module (1)
 p. 34
YES - All bars are functional.
Go to point 6.3
NO - Replace HMI module (1)
 p. 34
YES - Reed switch defective
NO - Go to point 8
YES - Thermo fuse on pump
(19) defective?
NO - Go to point 8.2
YES - Head magnet (30) defec-
tive?
NO - Go to point 8.3
YES - a) Water tank inserted
correctly?
YES - b) Filter (25) in water tank
connector (20) blocked or
assembled upside down?
YES - c) Fluid system empty?
YES - d) Fluid system severely
scaled or blocked?
YES - Replace cpl. coffee
machine
NO - Go to point 9
T R O U B L E S H O O T I N G
Action / repair work
Lumio service manual
Further action /
repair work
YES - Replace NTC
temperature sensor  p. 34
NO - Go to point b)
YES - Replace building
block  p. 34
NO - Go to point 6.3
YES - Machine is ready. Go
to point 6.4
NO - Replace building block
 p. 50
YES - Replace cpl. coffee
machine
YES - Replace pump  p. 34
NO - Replace building block
 p. 34
YES - Replace cpl. coffee
machine
YES - Go to point b)
NO - Insert water tank
correctly
YES - Clean, check or
replace water tank
connector ( p. 55)
NO - Go to point c)
YES - Prime fluid system
 p. 71
NO - Go to point d)
YES - Deblock injector
 p. 88). Descale machine
 p. 89
NO - Go to point 8.4
31