Specifications

SiBE341027 Troubleshooting by Remote Controller
Service Diagnosis 173
2.40 Transmission Error (between Centralized Controller and
Indoor Unit)
Remote
Controller
Display
UE
Applicable
Models
All models of indoor unit intelligent Touch Controller
Centralized remote controller
Schedule timer
Method of Error
Detection
Micro-computer checks if transmission between indoor unit and centralized controller is normal.
Error Decision
Conditions
When transmission is not carried out normally for a certain amount of time
Supposed
Causes

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