... press all the time) ,then open the switch(on back machine. red color), input four passwords (1, ... (press all the time), then open the switch(on back machine. The red color), input four old passwords ... press all the time), and then open the switch(on back machine. red color) , input four passwords. ... .G.TroubleshootingLCD screen does not illuminate:Check On/Off power switch,power cord connection,blown ...