Kalerm KLM1602 - Page 28

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3.12
3.12.4
3.12.4.6
YES - repair or replace damaged
HMI,item:78000055
HMI damaged
3.12.4.4
3.12.4.5
3.13
3.13.1
3.13.2
3.13.2.1
3.13.2.2
3.13.2.3
3.13.3
3.12.5
3.12.5.1
3.12.5.2
3.12.5.3
3.13.4
System testing
Malfunction
YES - Press any key to self-test
NO - 3.13.4.2
3.13.4.1
3.13.4.2
Press any key 2-3 times in
a row, until the self-test is
completed
3.13.4.3
3.13.4.4
Service Manual
Intelligent Fresh Ground Coffee Machine
KLM1602
Item Confirmation No. No. Cause Remedy RemarksProblem
Prob-
ability
Troubleshooting
ERROR 6
press 5
times FILL
UNIT, and it
still can not
be solved
by pressing
the rotary-
water
circuit is
clogged
ERROR
1~7Coffee
machine
needs to
be
repaired
when
there is
ERROR on
the screen
YES - replace damaged parts
NO - continue to 3.16.3.5
Dispenser valve
internal structure
damaged
Refer to 3.12.4.1
YES - repair or clear water circuit
NO - continue to 3.12.4.6
Water circuit
clogged
YES - connect or replace
connection line bewteen HMI
and PCBA, item: 78000048
NO - continue to 3.12.5.2
1. Disassemble control
panel according to 4.2.7;
2.
Disassemble control
panel components
according to 4.3.3;
3. Replace or repair
damaged components
according to control
panel explosive view
8810102001
Connection line
bewteen HMI and
PCBA loose
YES - repair or replace damaged
HMI,item:78000055
NO - continue to 3.12.5.3
HMI damaged
Refer to 3.12.5.1
Disassemble PCBA,
replace and repair
according to 4.2.11
YES - replace or repair PCBA,
item: 78000056
PCBA damaged
Press any button to fill
unit accomplished
YES - press any button to fill unit
Water circuit lack
of water
ERROR 7
communic
ation
mistakes
between
PCBA and
HMI
UNIT EMPTY
PRESSURE
HIGH
(protective
program
during
making
coffee)
Information
reminding
TEMPERATUR
E HIGH
BREW UNIT
RESET
RESTART
MACHINE
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 3.13.2.2
YES - clean brew unit
NO - continue to3.13.2.3
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
Brew unit is
dirty,lots of coffee
powder in
contropistone
YES - clean and maintain brew
unit
NO - continue to 3.13.4.3
Clean coffee machine
according to 5.2.2
The following should be repaired by maintainers
Disassemble PCBA,
replace and repair
according to 4.2.11
YES - replace or repair PCBA,
item: 78000056
NO - continue to 3.13.4.4
PCBA damaged
YES - repair or replace coder
circuit board, item: 78000005
NO - continue to 3.13.4.5
Replace or repair
damaged components
according to feedback
device explosive view
8810101013
Feedback device
damaged