Samsung Electronics 12-4When error occurs in air conditioner, error code is displayed on indoor unit display lamp and outdoor unit.12-2-1 Indoor unit LED error diagnosis Error detection and reoperation If error occurs during the operation, badness is indicated by LED flickering and all operation is stopped except LED. When reoperating by remote controller and switch determine the error mode after normal operation. Indoor unit LED lamp display at error detecting12-2 TroubleshootingPower ResetError of peripherals option set-upEEPROM ERROREEPROM OPTION ERRORError of the indoor unit sensorApplied indoor unit error display(Indoor unit display only during theoperation)Applied indoor unit error display(Indoor unit display only during theoperation)The whole indoor unit error displayOutdoor unit separated Display(Indoor unit display only during theoperation)Indoor unit door(Display is unrelated with operation)Indoor unit displayError of the outdoor unit pipe sensorFreeze prevention control(Errors occur during 6th detection)Communication error(Transmitter, wired remote control)Communication error between indoor unitsLED lampError mode Remark: Flickering : OffError of the indoor unit pipe sensor