Kalerm KLM1602, Service Manual, Page: 20 / 78

18
3.3
3.3.4
3.3.5
3.3.4.3
3.3.5.1
3.3.5.2
3.3.5.3
3.3.5.4
3.3.6.1
3.3.6.2
3.3.6.3
3.3.6
Troubleshooting
Item Confirmation No. No. Cause Remedy Remarks Problem
Prob-
ability
YES - replace or repair PCBA,
item: 78000056
Disassemble PCBA,
replace and repair
according to 4.2.11
PCBA damaged
The following should be repaired by dismatling the machine
Press
On/Off to
AUTO
CHECKIN
G and
then to
READY
EMPTY TRAY
on screen
No water
comes from
coffee
export
when
CLEANING
YES - power off the machine,
restart (drainage will be reset
when power on the machine)
NO - continue to 3.3.5.2
Stepper motor in
drainage valve
does not reset(
stepper motor still
in the drainage
position when
making coffee)
The following should be repaired by dismatling the machine
Inside pipe
connector
damaged- water
leakage(lots of
water on the
table)
YES - repair damaged pipe or
connector
NO - continue to 3.3.5.3
1. Disassemble
drainage valve group
according to 4.2.8;
2. Replace or repair
damaged components
according to drainage
valve group explosive
view 8810101006
YES - replace drainage valve
group
NO - continue to 3.3.5.4
Drainage valve
group damaged
1. Dismantle brew unit
according to 4.2.3;
2. Replace or repair
damaged components
according to brew unit
explosive view
8810101016
YES - replace contropistone seal,
item: 73000065
NO - continue to 3.3.5.5
Contropistone
seal damaged
YES - replace brew unit coffee
brewing unit,item: 881010032
NO - continue to 3.3.5.6
YES - replace brew unit seal,
item: 73000035
Brew unit piston
seal damaged
Brew unit waterseal
damaged
3.3.5.5
3.3.5.6
A little
water drops
from coffee
export
when
CLEANING (
normal
volume
should be
more than
35ml)
After cleaning,when
drainage starts,if the
noise is very loud, it
means brew unit filter
screen get clogged
YES - enter
menu-MAINTAINCE-CLEAN
NO - continue to 3.3.6.2
Brew unit filter
screen clogged
The following should be repaired by dismatling the machine
1. Disassemble
drainage valve group
according to 4.2.10;
2. Replace or repair
damaged components
according to drainage
valve group explosive
view 8810101006
YES - repair damaged pipe or
connector
NO - continue to 3.3.6.3
YES - replace drainage valve
group
NO - continue to 3.3.6.4
Inside pipe
connector
damaged-water
leakage(lots of
water on the
table)
Drainage valve
group damaged
Service Manual
Intelligent Fresh Ground Coffee Machine
KLM1602