Daikin FTXS09DVJU Service Manual page 149

Troubleshooting
Troubleshooting
Check No.07
Refer to P.174
Check No.08
Refer to P.174
Check No.14
Refer to P.178
138
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
∗ 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.
Get restarted and measure the
input current.
Input current flowing
above its stop level?
YES
Check No. 14
Check the main circuit electrolytic
capacitor.
Normal?
YES
Turn off the power and disconnect
the harnesses U, V and W.
Check with the inverter checker (∗).
Any LED off?
NO
Turn off the power, and reconnect
the harnesses. Turn on the power
again and get restarted.
Check No. 08
Check the discharge pressure.
Check No. 07
Check the installation condition.
NO
NO
YES
SiUS04-702
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.)
(R4716)
Service Diagnosis