I installed 4 Rainbird JTV valves (new jar top) and one of them will only work manually. I swapped solenoids to another valve and the solenoid opened the other valve so I know the electric and solenoid are not the problem. Took off the top and diaphragm 3 times cleaned them, nothing. Replaced the top and diaphragm, nothing. Tried tightening the top and solenoid to varying degrees and the valve still will not open except manually by bleed screw or turning the solenoid. Any suggestions would be appreciated.