Si10-417
Troubleshooting
Service Diagnosis
57
Trouble
shooting
Check
No.7-2
Refer to
P.159
Check No.8
Refer to
P.160
Check No.14
Refer to
P.164
Note:
If the model doesn’t have SPM, replace the outdoor unit
PCB.
∗
An input over-current may result from wrong internal wiring. If the
wires have been disconnected and reconnected for part
replacement, for example, and the system is interrupted by an input
over-current, take the following procedure.
Replace the outdoor
unit PCB.
Replace the
electrolytic capacitor.
∗
Inverter checker
Part No.: 1225477
Correct the power
supply or replace the
SPM.
(Replace the outdoor
unit PCB.)
(R2844)
Input
current flowing above
its stop level?
NO
YES
NO
Normal?
Any LED off?
YES
NO
Check with the inverter
checker (
∗
).
Turn off the power, and
reconnect the harnesses. Turn
on the power again and get
restarted.
Turn off the power and
disconnect the harnesses U, V
and W.
YES
Get restarted and measure the
input current.
Check No. 8
Check the discharge
pressure.
Check No. 7-2
Check the installation
condition.
Check No. 14
Check the main circuit
electrolytic capacitor.
Caution
Be sure to turn off power switch before connect or
disconnect connector, or parts damage may be occurred.
Si10-417.fm Page 57 Wednesday, September 22, 2004 6:38 PM
