Troubleshooting; Compressor And Electric Components - LG GR-F218 Service Manual

6. TROUBLESHOOTING

6-1 COMPRESSOR AND ELECTRIC COMPONENTS

1
Power source.
Check
2
resistance of
motor
compressor.
Check
3
resistance of
PTC-Starter.
4
Check OLP.
Check
5
starting state.
Remove PTC-Starter
from compressor and
measure voltage
between terminal C of
compressor and
terminal 5 or 6 of PTC.
No voltage.
Applied voltage isn't
in acceptable range.
(115V ±10%)
Check resistance
between M-C, S-C and
M-S in motor
Open or short
compressor.
Check resistance of
two terminals in
PTC-Starter.
Check resistance of two
terminals in OLP.
Check the power supply
under load.
(Compressor attempting
to re-start after being off
for 5 minutes).
(Rated voltage
±10%)?
YES
OLP disconnected?
NO
Advise customer that
power supply needs to be
checked by an electrician.
The range of resistance is between 1~50½ (ok)
Replace
compressor.
Refer to page 12.
Refer to page 12.
YES
Supply
Did
voltage rating compressor
with ±10%. start?
NO
- 14 -
YES
Replace OLP.
Check connection
condition.
Reconnect.
3 4
YES
Compressor
is OK
Replace the
compressor
NO
2
5
5
3
5
1