Kalerm KLM1601, Service Manual

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25
Troubleshooting
Item Confirmation No. No. Cause Remedy Remarks Problem
Prob-
ability
3.5
The following should be repaired by dismatling the machine
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 4.2.10;
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
Disassemble flowmeter
and replace according
to 4.2.5
Disassemble PCBA,
replace and repair
according to 4.2.12
1. Disassemble PCBA,
replace and repair
according to 4.2.12;
2. Disassemble grinder
group according to 4.2.7;
3. Disassemble grinder
group according to 4.3.3
according to grinder
group explosive view
8810101002
4. Replace or repair
damaged components
YES - replace contropistone seal,
item: 73000065
NO - continue to 3.5.6.7
YES - replace coffee brewing
group,item: 8810101023
NO - continue to 3.5.6.8
YES - replace water seal,
item: 73000035
NO - continue to 3.5.6.9
YES - replace damaged parts in
brew unit
YES - replace flowmeter,
item: 73000089
NO - continue to 3.5.7.2
YES - replace or repair PCBA,
item: 78000006
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
YES - replace grinder group parts
Contropistone seal
damaged,coffee
sprays from the
gap between
coffee brewing
box and
contropistone
Brew unit piston
seal damaged
Seal in brew unit
damaged
Brew unit parts
damaged; when
making coffee,
coffee brewing
box can not be
closed exactly
Flowmeter
damaged,
magnet inside the
flowmeter does
not work
Program or PCBA
damaged
Improper coffee
beans or coffee
powder
Coffee powder is
too rough
Grinder group
damaged or end
of life
3.5.6
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
3.5.8.1
3.5.8.2
3.5.8.3
Coffee
volume is
too little
(the volume
of Espresso
is less than
25ml)
3.5.7
Too much
coffee( the
volume of
Espresso is
more than
100ml)
3.5.8
Coffee is to
soft, no
creama on
the top
Use
coffee
beans to
make
coffee
Refer to 3.5.6.6
Refer to 3.5.6.6
Refer to 3.5.6.6