Water source is not providing water flow within an adequate range.
Top Causes
● The system does not have enough water flow to the sprinkler or water is off.
● Flow meter is incorrectly configured in System Setup (if applicable, check “type” and whether it is enabled/disabled).
● Flow meter is wired incorrectly; check wiring to Flo1 (Controller 2)/S1 (Controller 3) and Common (C) on controller terminal connection points.