Malfunction Of Transmission Between Centralized Controller And Indoor Unit; Centralized Controller And Indoor Unit - Daikin VRV II RXYQ8MY1K Service Manual

Si39-502A
3.50 " UE "
Malfunction of Transmission Between Centralized
Controller and Indoor Unit
UE
Remote
Controller
Display
Applicable All models of indoor units
Centralized controller
Models
Method of Microcomputer checks if transmission between indoor unit and centralized controller is normal.
Malfunction
Detection
Malfunction When transmission is not carried out normally for a certain amount of time
Decision
Conditions
Supposed
Causes
Troubleshooting
Malfunction of transmission between optional controllers for centralized control and indoor
unit
Connector for setting master controller is disconnected.
Failure of PC board for central remote controller
Defect of indoor unit PC board
Troubleshooting by Indication on the Remote Controller
211