Daikin RX-W Series Service Manual page 176

Troubleshooting for Outdoor Unit
Troubleshooting
Reference
Check No.15 Refer to P.195
Reference
Check No.17 Refer to P.199
Reference
Check No.18 Refer to P.199
170
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
* An input overcurrent may result from wrong internal wiring. If the system is interrupted by an input
overcurrent after the wires have been disconnected and reconnected for part replacement, check the
wiring again.
Check No. 17
Check the installation condition.
Start operation and measure the
input current.
Input current
flowing above its stop level?
YES
Turn off the power and disconnect
the harnesses U, V, and W.
Check No.15
Check with the inverter analyzer.
Any LED off?
NO
Turn off the power, and reconnect
the harnesses. Turn on the power
again and start operation.
Check No. 18
Check the discharge pressure.
NO
* Inverter analyzer:
RSUK0917C
YES
SiUS092230EA
Replace the outdoor unit
PCB (main PCB).
Correct the power supply or
replace the outdoor unit
PCB (main PCB).
(R21863)
Part 6 Service Diagnosis