Hello! When I started up the irrigation system this year some of the numbers on the LCD screen weren't showing up. Had a tech come out and he says the whole unit will have to be replaced. (ouch!) Anyone else have this problem and successfully fixed it on their own? Or is there a way to replace part of the controller, but not the whole unit? He thought it may have gotten wet, so I got out the hairdryer to try and dry it out...I can't seem to get the box completely open though. Thanks in advance!!