Diagnosis by Remote Controller
4.44 "UE" Malfunction of Transmission between Centralized
Controller and Indoor Unit
UE
Remote
Controller
Display
Applicable
Central remote controller
Schedule timer
Models
All models of indoor units
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
170
Malfunction of transmission between optional controllers for centralized control and indoor unit
Defect of indoor unit PC board
SiBE26-701
Troubleshooting