I found that the middle unit serves the att building not the one we replaced. the fliter door was on the roof wide open from there maintenance company Allowing water to come into the duct work. I put the panel back on a put all screws back into the unit. The far west unit for battery plus is a new unit that was just installed recently by another company and found a lot of screws on the roof around the new unit and also on this unit the filter door was off also. I put the panel back on to help with the water. I also found in the control/compressor Cabnet that there was signs of water puddling from rain coming threw the condenser fan when it is not running. They have drilled a hole the the bottom of the unit for the electrical to come threw and never sealed around it to provent water to run in the hole. At this time I told terry that they need to have the company that installed the system that they need to come fix it since it there install and under there warranty on the unit and dam