Maybe bolt pin not in the rammer?
have you ever taking the noid apart? I had a similar issue when i took the noid apart and accidentially put the center part of the noid backwards. If you havent taken it apart, then i would check o rings and top hats to make sure there are no leaks, check the LPR, check noid conections, and thenyou could also check the board to see if thats bad. Hope that helps a little man gl