Question
I can reset all things on the program, cycle start, run times, but I can't reset the "on days" and "off days". "Err" comes up each time. I can only change "day #1/Sunday". Any ideas on how to fix this?

Answer
Hey David, I hope this helps. It sounds like you have entered a 1 day calendar, instead of a 7 day weekly calendar. To change it to a 7 day calendar, put the dial to the "calendar/program erase" position. The current calendar length should be displayed, does it say PE:1? If it does, then key in the number 7 and press enter. It should now show you PE:7, which means you now have  a 7 day calendar. Hopefully it will work for you now. If it says PE:7, and you still cannot program in the days to water (error message), then you have a problem with the circuit board. Good luck and have a great day.