6. TROUBLESHOOTING
- 17 -
6-1 COMPRESSOR AND ELECTRIC COMPONENTS
1
2
3
4
5
2
5
5
3
5
1
4
3
YES
NO
YES
Open or short
YES
YES
NO
NO
Power Source.
No voltage.
(Rated voltage
±10%)?
Replace OLP.
Reconnect.
Did
compressor
start?
Compressor
is OK
Replace the
compressor
Check connection
condition.
OLP disconnected?
Advise customer that
power supply needs to be
checked by an electrician.
Supply
voltage rating
with ±10%.
Applied voltage isn't
in acceptable range.
(115V ±10%)
Remove PTC-Starter/Combo
from compressor and
measure voltage
between Terminal C of
compressor and
terminal 5 or 6 of PTC/Combo
Check resistance of
PTC-Starter/Combo
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
PTC-Starter.
Check OLP.
Check
starting state.
Check resistance
of motor
compressor.
Replace
compressor
Check
resistance of
motor
compressor.
The resistance between pins should be
between 1 and 50 ohms. The resistance to
ground should be infinite.
or short to
ground
Check the resistance
between M-C, S-C and M-S
in motor compressor.
Check each pin to ground.
Check resistance of
two terminals in
PTC-Starter/Combo
At normal temperature
6.8 +20: OK
?
If power conducts: OK
If not: NG
