Troubleshooting
Si10-417
90
Service Diagnosis
Trouble
shooting
Check No.12
Refer to
P.163
Turn off the power and turn it
on again.
C
heck No.
12
Check the capacitor voltage.
Replace the outdoor
unit PCB.
Replace the outdoor
unit PCB.
Check the supply
voltage.
YES
NO
∗
Running
current as shown at right
with relay cable
1 or 2?
NO
YES
Voltage
within the allowable
range (Supply
voltage±15%)?
NO
YES
Get the system started.
Measure the rectifier input
voltage.
A
Rising with increasing
frequency
2 sec
Time
Capacitor charged
when the indoor unit
or outdoor unit main
relay turns on
Caution
Be sure to turn off power switch before connect or
disconnect connector, or parts damage may be occurred.
DC380±30V?
Current
(guideline)
* Inverter checker
Part No.: 1225477
Correct the power
supply or replace the
SPM.
(Replace the outdoor
unit PCB.)
Replace the outdoor
unit PCB.
Replace the
compressor.
Any LED off?
Compressor running?
NO
YES
YES
NO
Turn off the power. Disconnect
the harnesses U, V and W.
Turn off the power and reconnect
the above harnesses. Then turn
on the power again and get the
system restarted.
A
Check with the inverter
checker (
∗
).
(R2848)
Si10-417.fm Page 90 Wednesday, September 22, 2004 6:38 PM
