Si10-417
Troubleshooting
Service Diagnosis
117
Keep on using as it is
(monitor).
Check the electricals'
connectors and other
fittings.
∗
Inverter checker
Part No.: 1225477
Replace the SPM.
(Replace the outdoor
unit PCB.)
Correct the power
supply.
Replace the
compressor.
(R2852)
NO
YES
Voltage as rated?
YES
NO
Short-circuit or
breakage between
compressor's coil
phases?
NO
YES
Normal?
Monitor the supply voltage,
discharge and suction
pressures, and other factors
for a long term.
Possible causes
l
Instantaneous supply
voltage drop
l
Compressor motor
overloaded
l
Contact-induced electrical
short-circuit
Turn off the power, and
reconnect the harnesses. Turn
on the power again and get
restarted.
Check the supply voltage.
C
heck No.
13
Check the power transistor.
C
heck No.
8
Check the discharge pressure.
C
heck No.
7-1
Check the installation condition.
A
2A
Si10-417.fm Page 117 Wednesday, September 22, 2004 6:38 PM