I have an Irritrol RD-600-EXT - Rain Dial Series problem that I would like some help with. It has been installed for quite some time and just recently started having issues. Problem: 1. Grass started to dry out in the front yard. 2. Manually tried to turn on Station 1 (front yard)....I could see the time on the LCD count down but no water was supplied to front yard. 3. I manually turned on all other stations (2-5) and they came on fine. 4. I found that if I manually started station 2 (backyard-w...