Central Control Indicator Lamp Blinks (Two Blinks) - Daikin VRV IV-S RXTQ-TAVJU Series Service Manual

Troubleshooting by Error Code

4.56 Central Control Indicator Lamp Blinks (Two blinks)

-
Error Code
Applicable
ON/OFF controller
Models
Method of Error
DIII-NET communication data is used to detect the error.
Detection
Error Decision The indoor unit has no centralized control address set
Conditions No indoor unit within the control range
Supposed
Causes
Troubleshooting
221
The indoor unit has no centralized control address set (Group No.)
Control range setting switch set incorrectly
Wiring connection error
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Is the
indoor unit centralized
control address (group
No.) set?
YES
Is the
control range setting
switch correctly
set?
YES
Is the
connection wiring
broken or wrong?
YES
NO
Use the remote controller
to set the centralized
control address for all the
indoor units connected
with the centralized
controller.
NO
Correctly set the control
range setting switch
and concurrently reset
the power supply of all
the centralized
controllers.
NO
Correct the wiring.
Replace the ON/OFF
controller PCB.
SiUS331604E
Service Diagnosis