Battery? Other than that it sounds like the noid is gummed up.
I know that if my presures are low or my battery is dead my 11 does this. Also if u pull the trigger to test , have you tried just setting it to psp and rolling the trigger to attempt to clear the noid I know sometimes you can get it to fire.
Matts Outback Paintball
Former Fuzzy Bunnies Captain
You gas up the marker, put on the gloves, strap on the mask, and walk onto the field.. it doesn't matter that you failed a test, that your girlfriend broke up with you last night, or that you got a ticket on the way there... your world is right for the next couple hours, this is your heaven on earth