Kalerm KLM1602, Service Manual

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22
3.5
3.5.6.3
3.5.6.4
3.5.6.5
3.5.6.6
3.5.6.7
3.5.6.8
3.5.6.9
3.5.7.1
3.5.7.2
3.5.6
3.5.8
Item Confirmation No. No. Cause Remedy Remarks Problem
Prob-
ability
Troubleshooting
Service Manual
Intelligent Fresh Ground Coffee Machine
KLM1602
YES - power off coffee machine,
restart
( drainage valve will be reset
automaticly when restart )
NO - continue to 3.5.6.3
Drainage valve
stepper motor
does not reset
(when making
coffee, stepper
motor is still in
drainage position
)
The following should be repaired by dismatling the machine
YES - repair damaged pipe or
connector in front of the
drainage valve group
NO - continue to 3.5.6.4
YES - repair pipe or connector at
the back of brew unit
NO - continue to 3.5.6.5
Inside pipe
connector
damaged or
dropped-water
leakage (water
on the table)
Inside pipe
connector
damaged or
dropped leads to
coffee leakage
(lots of coffee on
the table)
Coffee
volume is
too little
(the volume
of Espresso
is less than
25ml)
Use
coffee
beans to
make
coffee
Drainage valve
group damaged,
no water comes to
brew unit,
dropped to drip
tray from drainage
valve directly
YES - replace drainage valve
group
NO - continue to 3.5.6.5
1. Disassemble drainage
valve group according
to 4.2.8;
2. Replace or repair
damaged components
according to drainage
valve group explosive
view 8810101006
1. Disassemble 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 3.5.6.7
Contropistone seal
damaged,coffee
sprays from the
gap between
coffee brewing
box and
contropistone
YES - replace coffee brewing
group,item: 8810101023
NO - continue to 3.5.6.8
Brew unit piston
seal damaged
Refer to 3.5.6.6
YES - replace water seal,
item: 73000035
NO - continue to 3.5.6.9
YES - replace damaged parts in
brew unit
Seal in brew unit
damaged
Brew unit parts
damaged; when
making coffee,
coffee brewing
box can not be
closed exactly
Refer to 3.5.6.6
Refer to 3.5.6.6
3.5.6.2
Disassemble flowmeter
and replace according
to 4.2.5
Disassemble PCBA,
replace and repair
according to 4.2.11
YES - replace flowmeter,
item: 73000089
NO - continue to 3.5.7.2
YES - replace or repair PCBA,
item: 78000056
Flowmeter
damaged,
magnet inside the
flowmeter does
not work
Program or PCBA
damaged
YES - use proper, fresh coffee
beans or coffee powder
NO - continue to 3.5.8.2
YES - adjust the grinder
adjustment rotate to the finest
state, continue to make 2 cups of
coffee, the 3rd cup will meet the
standard
NO - continue to 3.5.8.3
Improper coffee
beans or coffee
powder
Coffee powder is
too rough
The following should be repaired by dismatling the machine
3.5.8.1
Too much
coffee( the
volume of
Espresso is
more than
100ml)
Coffee is to
soft, no
creama on
the top
3.5.7
3.5.8.2