Hello all, I found the wire off from the control box to the "other smaller box". (don't know what it is called). Machine and table was recently moved and wire must have come lose then. I don't know where to connect the wire back to the smaller box. It has connections on the side that say "V- V- V+. Does it go on one of these? I have an older Shark Pro. I think the first model shark pro. approx. 8 yrs old.