if a sprinkler head is broken? Turn time to 0 min. on the zone the sprinkler head is on. Then fix the head or call for service. What should I do if sprinkling is on and the controller is off...? Chances are this is a more involved problem than with which a homeowner can deal. Simply turn valve to sprinkling off and call for service. I turn the station... on at the controller but no water. Check the valve to sprinkling and make sure it is open. Check valves on vacuum breaker and make sure they're open. Check power on controller. Call for service. How...