Daikin VRV-WIII RWEYQ72PTJU Service Manual page 241

SiUS30-1301
Service Diagnosis
Check of error 3 Check of error 4
Is the model BSVQ-P
connected?
YES
Diagnosis Flow 6
Check of error 3 Check of error 4
Is the
wiring between the indoor
and Branch Selector
unit correct?
YES
Troubleshooting by Indication on the Remote Controller
NO
NO
Connect the model BSVQ-P.
Replace the condensing unit PCB
as shown below.
• With single systems, replace the
service monitor PCB 1 (A1P).
• With multi systems, replace the
condensing unit main PCB (A1P).
Correct the wiring.
Replace the indoor unit PCB or
Branch Selector unit PCB.
233