Rainbird Tbird Heads cause the same problem. If they worked last year, before you winterized, then i would check the wiper seal on the sprinkler head, to make sure there is no grit in it, and if so clean it out, the dirt will prevent the head from sealing
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers