How to Troubleshoot a Toro Sprinkler Head

If the Toro sprinkler head is rotating erratically, it is damaged and must be replaced. Rotate the knob controlling the flow of water to the Toro system counterclockwise until it can no longer be turned. Push the dirt away from the sides of the sprinkler head so that you can see the threaded pipe that is in the ground. Unscrew the sprinkler head with a counterclockwise motion -- pliers can be used to start the head turning if it is too tight for your hands to turn it. Remove the sprinkler head and dispose of it properly. Screw the replacement Toro sprinkler head onto the threaded pipe. Replace the dirt around the pipe. Turn the knob controlling the water clockwise to restore the flow of water to the Toro system.

If the Toro sprinkler head refuses to turn, but water is exiting it, the electrical power that the Toro system needs has been cut off. Go to the fuse box and verify whether the fuse or circuit breaker that supplies power to the Toro system has been blown/tripped. If this is the case, replace the fuse or trip the circuit breaker to restore the power.

Clogged valves will prevent the Toro-brand sprinkler head from operating efficiently. Clean the clogged valves by first turning the knob controlling the flow of water to the Toro sprinkler system counterclockwise. Discontinue power to the system by pulling the fuse or tripping the circuit breaker in the fuse box that transfers electricity to the system. Push the dirt away from around the valve mechanism with your hands. Unscrew the valve from the pipe with a counterclockwise motion. Run water under pressure from a garden hose through the valve to flush out the contaminants. Screw the valve back on the pipe when done. Restore electrical power and water pressure to the system.