when there is a light-weight, the blue wire need to be linked on the black wire from the change also. this is a one reading a day thing, just like opening one day on a calendar as a child. during the day or at night, it is always lively in there. and another time, a harder time for me, when i'd been rejected in yet another job search, and i figured i'd planned my and my family's life all wrong, that i'd wasted years and money and was a complete failure and needed to start all over again. 