I have a 3 in 1 and I took it down to clean it, replace the batteries (normal maitnence). The issue is is that the sensor is putting out a signal from what I can tell but the display resist to connect no matter what I do. Can someone please assist me, the unit is only 2 years old. I got it at Homedepot on clearence for 8 dollars when its ussually like 80 dollars so if I have to buy a new weather station its not really a big deal.