BRC1E52A7 Installation manual4PW71264-1 – 10.2011 125. Power-on● Check for completion of indoor/outdoor units wiring.● Check for closing of switch box cover of indoor and outdoor units before power-on.5-1 Followings are displayed afterpower-on."Checking the connectionPlease stand by"During above display, backlightdoes not light by button operation.When 1 indoor unit iscontrolled by 2 remotecontrollers:Be sure to set sub remotecontroller during above display.Press and hold 4 seconds orlonger the Operation modeselector button of the remotecontroller to be set.When the display is changed frommain remote controller to subremote controller, the setting iscompleted.5-2 Basic screen is displayed.If sub remote controller is not set at power-on in the caseof one indoor unit controlled by two remote controllers,"Error code: U5" is displayed in the connection checkingscreen.Select the sub remote controller by pressing theOperation mode selector button of either one of theremote controllers for 4 seconds or longer.If the basic screen is not displayed more than 2 minutesafter "sub remote controller" display, shut off the powersupply and check the wiring.CAUTIONWhen selecting a different language, refer to 12. Language. (See page 23.)NOTE 5-1 Checking the connection.Please stand by.Off reminder TimerMain RCChecking the connection.Please stand by.Error Code U5Main RC5-1 Checking the connection.Please stand by.Off reminder TimerMain RCChecking the connection.Please stand by.Error Code U5Main RCPress and hold 4 secondsor longer the Operationmode selector button of subremote controller side.Checking the connection.Please stand by.Off reminder TimerSub RC5-2Fan5-2Fan