LG LTCS20020 Series Service Manual page 38

4) Defrost Error
N o
1
Check the Door Gasket.
2 Check the Defrost control part.
Input Test 2 Mode.
3
(Push the button 2 times)
Check voltage in wires Brown to Blue in
4
connector CON2
Release the test mode.
5
Push the button 1 times. (normal)
Check voltage in wires Brown to Blue in
6
connector CON2
COLD
C h e c k n i g f o l w
Fuse-M
Defrost
Heater
COLDEST
R e s u
Part Result
0
Fuse-M
Def'
Heater
254.7 Ω ± 5%
Def'
0
Sensor
OFF
Result
220VAC ± 10VAC
0 V
Result
0 V
220VAC ± 10VAC
38
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t l & S V C A t c o i n
SVC Action
Go to the 3
Change Fuse-M
Go to the 3
Change Fuse-M
Go to the 3
Replace product
SVC Action
Go to the 5
Replace Main PCB
SVC Action
Nomal
Replace Main PCB