Transmission Error Between Centralized Controller And Indoor Unit - Daikin VRV RXYMQ-A Series Service Manual

Troubleshooting by Error Code
5.65 Transmission Error between Centralized Controller and
Indoor Unit
Applicable All indoor unit models
Schedule timer
Models
Central remote controller
UE
Error Code
Method of Error
Microcomputer checks if transmission between indoor unit and centralized controller is normal.
Detection
Error Decision
Transmission is not carried out normally for a certain amount of time
Conditions
Supposed  Transmission error between optional controllers for centralized controller and indoor unit
Causes  Connector for setting main controller is disconnected.
 Defective PCB for central remote controller
 Defective indoor unit PCB
266
(or disconnection of connector for independent / combined use changeover switch.)
SiME332106E
Part 6 Service Diagnosis