Hunter Sprinkler Training Rain Sensor and Active Bypass Switch

Pat Dowd covers how easy the rain sensor options are on your Hunter Program.
For more tips on how to operate the Hunter Program simple go to wwwpatdowd.com

[@JasonGeraldG]

There are little Hygroscopic Discs under the rain sensor cap that expand when they absorb water which in turn caused the spindle they are on to press against a switch that bypasses the sprinkler system. These discs eventually get thicker and do not return to their smaller shape. You can get a replacement for $10 which includes a new spindle, cap and discs that should fix the issue. You might be able to get them to work by removing a disc or two, but I think it is better just to replace them. My unit is about 15 years old and I thought it that issue, but it turned out a wire spice went bad and the rain sensor started working as soon as I re-spliced it.

[@Tlumplump]

Although it has not raided, my unit still show off when I switch the unit to Active. What could it be that;s causing this unit to do that