SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 321
5.66 Transmission Error between Centralized Controller and
Indoor Unit
Applicable
Models
All indoor unit models
Schedule timer
Central remote controller
intelligent Touch Controller
Error Code UE
Method of Error
Detection
Microcomputer checks if transmission between indoor unit and centralized controller is normal.
Error Decision
Conditions
Transmission is not carried out normally for a certain amount of time
Supposed
Causes
Transmission error between optional controllers for centralized controller and indoor unit
Connector for setting main controller is disconnected.
(or disconnection of connector for independent / combined use changeover switch.)
Defective PCB for central remote controller
Defective indoor unit PCB
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