Kalerm KLM1601, Service Manual

Page: 33 / 96

Troubleshooting
31
3.16
3.16.3
3.16.3.6
3.16.3.4
3.16.3.5
3.17
3.17.1
3.17.2
3.17.2.1
3.17.2.2
3.17.2.3
3.17.3
3.17.4
3.16.4
3.16.7.1
3.16.7.2
3.16.7.3
Error3
(VALVE
RESET
RESTART
3.17.4.3
3.17.4.1
3.17.4.2
3.17.4.4
Item Confirmation No. No. Cause Remedy Remarks Problem
Prob-
ability
YES - replace damaged parts
NO - continue to 3.16.3.5
Dispenser valve
internal structure
damaged
Refer to 3.16.3.1
ERROR 6
press 5
times UNIT
EMPTY, and
it still can
not be
solved by
pressing the
rotary-
water
circuit is
ERROR
1~7Coffee
machine
needs to
be
repaired
when
there is
ERROR on
the screen
YES - repair or clear water circuit
NO - continue to 3.16.3.6 Water circuit
clogged
Pipe damaged YES - replace damaged pipe
ERROR 7
communic
ation
mistakes
between
PCBA and
HMI
YES - connect or replace
connection line bewteen HMI
and PCBA, item: 78000024
NO - continue to 3.16.7.2
1. Disassemble control
panel according to 4.2.8;
2. Disassemble control
panel components
according to 4.3.4;
3. Replace or repair
damaged components
according to control
panel explosive view
8810101007
Disassemble PCBA,
replace and repair
according to 4.2.12
YES - repair or replace HMI,
item: 78000002
NO - continue to 3.16.7.3
YES - replace or repair PCBA,
item: 78000006
Connection line
bewteen HMI and
PCBA loose
HMI damaged
PCBA damaged
Refer to 3.16.7.1
Press rotary till FILL UNIT
accomplished
YES - press rotary to fill unit
Water circuit lack
of water
UNIT EMPTY
Information
reminding
PRESSURE
HIGH
(protective
program
during
making
coffee
)
The following should be repaired by maintainers
Clean coffee machine
according to 5.2.2
Clean coffee machine
according to 5.2.3
YES - use suitable coffee bean
or coffee powder
NO - continue to 3.17.2.2
YES - clean brew unit
NO - continue to3.17.2.3
YES - take out drip tray,clean
filter screen
Use deep roasted
coffee beans or
use over fine
coffee powder
Filter screen of
brew unit clogged
Coffee powder
clogged filter
screen completely
YES - half an hour after restart
the machine
System testing
Malfunction
TEMPERATUR
E HIGH
YES - restart the machine
NO - continue to 3.17.4.2 System testing
Malfunction
The following should be repaired by maintainers
Disassemble PCBA,
replace and repair
according to 4.2.12 YES - replace or repair PCBA,
item: 78000006
NO - continue to 3.17.4.3
PCBA damaged
1. Disassemble dispenser
valve according to 4.2.9;
2. Disassemble dispenser
valve according to 4.3.2
YES - replace microswitch
NO - continue to 3.17.4.4
Dispenser valve
microswitch
damaged
YES - replace or repair dispenser
valve line pencil, item: 78000008
NO - continue to 3.16.3.3 Dispenser valve
microswitch line
pencil fell off
Refer to 3.17.4.3