Daikin VRV IV-S RXTQ-TAVJU Series Service Manual page 230

Troubleshooting by Error Code
Troubleshooting
217
Continued from A
the previous page
Are
all the indoor
units experiencing
transmission
failure?
YES
Is the
master
centralized controller
connection wiring
broken or
wrong?
YES
Is the setting
connector of the
master centralized
controller
loose?
YES
Does
the indoor unit
NO NO
on which the error occurred
set the group No.?
YES
NO
NO
SiUS331604E
Correct the setting of
the group No.
Replace the centralized
controller PCB.
Correct the wiring.
Connect the connector
correctly.
Replace the centralized
controller PCB.
Service Diagnosis