Si10-417
Troubleshooting
Service Diagnosis
123
Keep on using as it is
(monitor).
Check the electricals'
connectors and other
fittings.
∗
Inverter checker
Part No.: 1225477
Correct the power
supply or replace the
SPM.
(Replace the outdoor
unit PCB.)
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 123 Wednesday, September 22, 2004 6:38 PM
