Daikin FTKD50BVM, Service Manual

Page: 120 / 210

Si04-306 Troubleshooting
Service Diagnosis 111
Troubleshooting
Check No.12
Refer to P.132
Turn off the power and turn it on
again.
Check No. 12
Check the capacitor voltage.
Replace the outdoor unit
PCB.
* 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.
Replace the outdoor unit
PCB.
Check the supply voltage.
(R2848)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
∗
Running current
as shown at right with relay
cable 1 or 2?
YES
Current
(guideline)
2 sec Time
Rising with increasing
frequency
Capacitor charged when
the indoor unit or outdoor
unit main relay turns on
NO
NO
DC380±30V?
YES
Voltage within
the allowable range (Supply
voltage±15%)?
YES
NO
Any LED off?
Compressor running?
YES
NO
YES
NO
Get the system started.
Measure the rectifier input voltage.
Turn off the power. Disconnect the
harnesses U, V and W.
Check with the inverter checker (
∗
).
Turn off the power and reconnect
the above harnesses. Then turn on
the power again and get the
system restarted.