irritrol 2500 valve not working after replacement.
I removed the old value and replaced it with the top and the internal parts of a new valve of the same model. I turned the valve on and nothing worked. With the valve still on, the solenoid was buzzing letting me know that I have it wired correctly. I then opened the bleeder valve and the sprinklers came on. After 20-30 seconds I then closed the bleeder valve and the sprinklers stopped two seconds later. Can someone tell me what else I can do to make this work?