Compressor And Another Electric Components - LG GC-151 Service Manual

COMPRESSOR AND ANOTHER ELECTRIC COMPONENTS

Power Source
1
Check the
resistance of the
2
Compressor Motor.
Check the
resistance of the
3
PTC.
4
Check OLP.
Check the
5
starting state.
Separate the PTC-STARTER from
the Compressor and measure the
voltage between M and C of the
Compressor.
The applied voltage is not in the
range of Rating Voltage ± 10%.
Test the resistance among
M-C, S-C, and M-S.
NO
Replace the Compressor.
Test the resistance of the both
terminals in the PTC-STARTER.
NO
Check if applying a
regular OLP.
YES
NO
Measure minimum starting voltage
after checking steps 1-3 above.
And measure the pressure balance
of the PTC with the interval of
more than 5 min.
Starts at the voltage of
more than 90%.
Equal to the applied
voltage. (Rating
voltage ± 10%)
Advice the customer
to use in the fixed
range.
YES
Replace the
PTC-STARTER.
OLP works within 30 sec.
in forcible OLP operation
by turning instant power on
and off.
Starts at the voltage
of 85% below.
Check the starting
state at the regular
voltage above.
Replace the PTC.
- 9 -
YES
2
4
3
3
YES
4
4
YES
5
NO
YES
NO
5
Replace OLP.
Normal.
Normal.