ESIE15-13C Troubleshooting by Remote Controller
Service Diagnosis 181
4.39 Transmission Error Between Centralized Controller and
Indoor Unit
Remote
Controller
Display
UE
Applicable
Models
All models of indoor units
Centralized 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 centralized control and indoor unit
Defective PCB for central remote controller
Defect of indoor unit PCB
Breaking and wrong wiring of connecting wire
Failure of the setting of group No. and address
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