Compressor Trouble Shooting; Compressor And Electric Components - LG LTN16385PL Service Manual

6. TROUBLESHOOTING

6-1 COMPRESSOR AND ELECTRIC COMPONENTS

YES
1
Power Source
2
NO
2 Check the resistance
2
between M-C, S-C and
M-S in compressor.
Must be below to
50ohms.
Check resistance of
3
3
PTC terminals.
NO
4
Check OLP
Check
5
starting state
Remove PTC from
compressor (be careful don't
touch the parts loaded),
then measure the voltage
between the blue terminal
(OLP) and terminal 5 or 6 of
PTC.
No voltage
NO
Replace compressor
Replace PTC
Check if are using the
correct OLP
Measure minimum voltage
starting after 5 minutes to
balance pressure of the cycle
and cool the PTC.
Rated voltage 10%
NO Voltage applied is not in
range of Rated Voltage
10%
YES
OLP connected?
NO
YES
YES
OLP works during 30
seg. in forced operation
when turned on and off.
NO
Components start at the
voltage nominal ±10%
- 12 -
YES
Advise to customer that
need to use a voltage
regulator.
Replace OLP
Check connection
condition.
Reconcect.
YES
YES
Replace OLP
NO
YES
O.K
NO
2
5
3
2
4
3
5
4
1