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Refrigerator
GR-391SCA
Service manual
Troubleshooting; Compressor And Electric Components - LG GR-391SCA Service Manual
Refrigerator
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Troubleshooting
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6. TROUBLESHOOTING
6-1 COMPRESSOR AND ELECTRIC COMPONENTS
1
Power Source.
Check the
2
resistance of
Motor
Compressor.
Check the
3
resistance of
PTC-Starter.
4
Check OLP.
Check
5
starting state.
Remove the PTC-Starter
from the Compressor
and measure the voltage
between Terminal C of
Compressor and
Terminals 5 or 6 of PTC.
No Voltage.
Applied voltage isn't
in the range of Rating
Voltage ±10%.
Check the resistance
among M-C, S-C and
M-S in Motor
Compressor.
Check the resistance
of two terminals in
PTC-Starter.
Check if applying
a regular OLP.
Measure minimum
starting voltage after 5
min. for balancing cycle
pressure and cooling
the PTC.
(Rating Voltage
±10%)?
OLP disconnected?
Advise the customer
to use a regular
Trans.
YES
NO
Replace Compressor.
YES
NO
YES
OLP works within
30 sec. in forcible
OLP operation by
turning instant power
on and off.
NO
Components start in
the voltage of Rating
Voltage ±10%
below.
- 12 -
YES
YES
Replace OLP.
Check connection
condition.
Reconnect.
3
4
Replace
PTC-Starter.
YES
NO
Replace OLP.
YES
O.K.
NO
2
5
5
3
5
4
5
5
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This manual is also suitable for:
Gr-482sca
Gr-431sca
Gr-432sca
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