Transmission Error (Between Centralized Controller And Indoor Unit) - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

SiBE341027
2.40 Transmission Error (between Centralized Controller and
Indoor Unit)
UE
Remote
Controller
Display
Applicable All models of indoor unit
Centralized remote controller
Models
Schedule timer
Method of Error Micro-computer checks if transmission between indoor unit and centralized controller is normal.
Detection
Error Decision When transmission is not carried out normally for a certain amount of time
Conditions
Supposed
Causes
Service Diagnosis
Transmission error between optional controllers for centralized control and indoor unit
Connector for setting main controller is disconnected.
(or disconnection of connector for independent / combined use changeover switch.)
Failure of PCB for centralized remote controller
Defective indoor unit PCB
intelligent Touch Controller
Troubleshooting by Remote Controller
173