Ue" Malfunction Of Transmission Between Central Remote Controller And Indoor Unit - Panasonic U-4..6ML5XPQ Service Manual

Troubleshooting by Indication on the Remote Controller
UE
3.50 " "
Malfunction of Transmission between Central
Remote Controller and Indoor Unit
UE
Remote
Controller
Display
Applicable AII indoor unit models
Centralized controller
Models
Method of Microcomputer checks if transmission between indoor unit and centralized remote controller is
normal.
Malfunction
Detection
Malfunction When transmission is not carried out normally for a certain amount of time
Decision
Conditions
Supposed
Causes
202
Malfunction of transmission between optional controllers for centralized control and indoor
unit
Connector for setting master controller is disconnected.
Failure of PC board for centralized remote controller
Defect of indoor unit PC board
Urban Multi ML5 · Mini UM · Heat Pump
Troubleshooting