After Power On, If Both Doors Are Closed And Locked Both Leds Will Go On Stady, Uv Light And Blower Are In Off Condition. If Pressing Sw 1 Or Sw 2 For Door 1 Or 2 Opening That Door Will Open For 1 To 15 Second Set By You, After Door Open & Closed. Both Door 1 & 2 Are Locked, Uv Light Will Go On 1 To 30 Minute Both Leds Will Go Flashing, And Also Blower Will Go On 1 To 60 Minute. At That Time Both Door 1 & 2 Will Not Open Till Uw Function Complete, If It Is Complete Buzzer Will Give 3 Beep Sound Every 30 Second To Indicate, Uv Function Is Complete, Both Leds Will Go Stady For Opening Door 1 Or 2 If Pressing Door Sw 1 Or 2 To Open Door 1 Or 2 Emergency Door Opening : During Uv Function On Both Door 1 & 2 Will Locked Till Uv Function Complete At That Time If You Want To Open That Door Pressing Sw 1 Or Sw 2 For 5 Second That Door Will Open , Uv Function Will Stop Buzzer Sound : 1 Beep For Door Opening 3 Beep For Uv Function Complete 4 Beep For Uv Light Problem Uv Sensor For Uv Out Put During Uv Function On If Uv Light Is Not Working Then Uv Sensor Will Indicate Logic Control To Stop Uv Function