4913. Servicing Mode13.1 Auto OFF/ON Button1 AUTO OPERATION MODEThe Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operationcan be used to operate air conditioner with limited function if remote control is misplaced or malfunction.2 TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than5 seconds. A “beep” sound will occur at the fifth seconds, in order to identify the starting of Test Runoperation (Forced cooling operation). Within 5 minutes after Forced cooling operation start, the Auto OFF/ONbutton is pressed for more than 5 seconds. A 2 “beep” sounds will occur at the fifth seconds, in order toidentify the starting of cooling operation. Within 5 minutes after cooling operation start, the Auto OFF/ONbutton is pressed for more than 5 seconds. A 3 “beep” sounds will occur at the fifth seconds, in order toidentify the starting of Forced heating operation.The Auto OFF/ON button may be used together with remote control to set / change the advance setting of airconditioner operation.3 REMOTE CONTROL NUMBER SWITCH MODEThe Remote Control Number Switch Mode will be activated if the Auto OFF/ON button is pressedcontinuously for more than 11 seconds (3 “beep” sounds will occur at 11th seconds to identify the RemoteControl Number Switch Mode is in standby condition) and press “Timer Decrement” button at remote controlto transmit and store the desired transmission code to the EEPROM.For transmission code selection explanation, please refer to “Select Remote Control Transmission Code”.4 REMOTE CONTROL RECEIVING SOUND OFF/ON MODEThe Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressedcontinuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the RemoteControl Receiving Sound Off/On Mode is in standby condition) and press “Timer Decrement” and then press“Check” button at remote control.Press “Auto OFF/ON button” to toggle remote control receiving sound.o Short “beep”: Turn OFF remote control receiving sound.o Long “beep”: Turn ON remote control receiving sound.After Auto OFF/ON Button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ONMode is restarted.