Quote:
Originally Posted by courtyard
I've had a similar problem lately...the Run Time changes by itself going well above the time I originally programmed. My water bill was very high and that's how I found out we had a problem. (Since we can only water at night while we are sleeping, one can never know if one is overwatering.) I checked out the instruction manual online and reset the Controller. And it still changed the Run Time by itself again. Our system is only 4 years old! I'll probably have to call the Warranty Dept. for further help.
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It sounds like your controller is running normally. Although at this time of year it should be running fewer minutes, not more, and doing so automatically. It will do this (run fewer minutes) even if the rain sensor is switched off. It is the Solar Sync that changes more or less watering each day.
There is a "Solar Sync" unit inside of the Pro C controller. (it's connected to that rain sensor at the side of your house) It adjusts the watering times every night. It does this by changing the percentage of water time on all zones.
1) Set your Solar Sync unit as the attached video(s) describe
2) Set your main controller to 100% watering time as shown in the video. And put in the maximum summertime watering minutes for each zone.
3) Look at the percentage the next day. It changed didn't it... Probably to about 30% this time of year.
Solar Sync - Programming - Part 1 of 2: Controller Setup - YouTube
Also, make sure your 9V battery inside the controller door is OK. It doesn't run anything, but does hold the settings in the event of a power failure. Oh, and by the way, you don't need to stay up all night to watch the watering. Just press and hold the "Manual" button for a few seconds to run the system through a single complete cycle. No one will be upset if you test the system during the day.
It appears to me that many lawns are stunted and killed by overwatering (root rot)