Specifications

Si38-304 Troubleshooting (OP: Unified ON/OFF Controller)
Troubleshooting 253
5. Troubleshooting (OP: Unified ON/OFF Controller)
5.1 Operation Lamp Blinks
Remote
Controller
Display
Operation lamp blinks
Applicable
Models
All models of indoor units
Unified ON/OFF controller
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
 Malfunction of transmission between optional controller and indoor unit
 Connector for setting master controller is disconnected
 Defect of unified ON/OFF controller
 Defect of indoor unit PC board
 Malfunction of air conditioner
    : http://splitoff.ru/tehn-doc.html