TROBLESHOOTING
-9-
COMPRESSOR AND ELECTRIC COMPONENTS
1:
2
3
4
5
2
4
3
3
4
4
5
5
NO
NO
NO
NO
NO
YES
YES
YES
YES
Power Source
Check the
resistance of the
Compressor Motor.
Check the starting
state at the regular
voltage above.
Check the
resistance of
the PTC.
Check OLP.
Check the starting
state.
Separate the PTC-STARTER from the
Compressor and measure the voltage
between M and C of the Compressor.
Equal to the applied
voltage. (Rating
voltage ± 10%)
Advice the customer to
use in the specified
range.
If not 0 or
∞
Advice the customer to use
in the specified range.
Measure minimum starting voltage
after checking steps 1-3 above.
Measure the pressure balance of the
PTC at the interval of more than 5 min.
Starts at the voltage of more
than 90%.
Replace OLP.
Normal.
Normal.
Replace the PTC.
Replace the
PTC-STARTER.
The applied voltage is not in the range
of Rating Voltage ± 10%.
Test the resistance among
M-C, S-C, and M-S.
Check if applying a
regular OLP.
Test the resistance of the both
terminals in the PTC-STARTER.
Replace the Compressor.
Starts at the voltage
of 85% below.
