Daikin F-Series Service Manual page 233

Troubleshooting
Troubleshooting
Check No.07
Refer to P.249
Check No.08
Refer to P.250
Check No.14
Refer to P.252
222
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,
check the wires again.
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
SiBE12-712C
Replace the outdoor unit
PCB.
Replace the electrolytic
capacitor.
∗ Inverter checker
Part No.: 1225477
Correct the power supply or
replace the PM1.
(Replace the outdoor unit
PCB.)
(R8459)
Service Diagnosis