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6. TROUBLESHOOTING
- 10 -
6-1 COMPRESSOR AND ELECTRIC COMPONENTS
Readings OK
Open or short
1
2
3
4
5
2
5
5
3
5
4
5
5
1
43
YES
YES
Readings OK
Readings OK
Open or short
Open or short
YES YES
NO
NO
Power Source.
No Voltage.
(Reated Voltage
±10%)?
Replace OLP.
Reconnect.
Replace
PTC-Starter.
Replace OLP.
Check connection
condition.
OLP disconnected?
Advise customer that
power supply needs to be
checked by an electrician.
Replace
Compressor.
Supply
voltage
rating with
±10%.
Applied voltage isn't
in range of Rating
Voltage ±10%.
Remove PTC-Starter
from Compressor and
measure voltage
between Terminal C of
Compressor and
Terminals 5 or 6 of PTC.
Check resistance
between M-C, S-C and
M-S in Motor
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).
Check
resistance of
Motor
Compressor.
Check
resistance of
PTC-Starter.
Check OLP.
Check
starting state.
Did
compressor
start?
Compressor
is OK
Replace the
compressor