Quoted from meSz:Check to make sure that the rubber grommet is there! If it's not, the plunger wont activate as most of the plunger is plastic! If the rubber grommet is not there the plunger sits too low and when the coil activates it wont fire the plunger as there is not enough of the metal plunger inside the coil to activate it!
This was excellent advice! I was thinking the coil was bad, a loose connection, etc. and it's just a simple rubber grommet! Mine is missing! and when I hold the plunger up a little and test it, it fires just fine! Win!
Does anyone know the proper size for this grommet? I was thinking I could pick one up at my local Lowes or something but don't want to buy 15 different sizes just to get one to work.
Thanks for the awesome advice here!