I hold a 12 gallon craftsman nouns compressor that runs obedient but wont build no nouns and blow sour spigot is working cant find a leak, can someone abet?

cant find a leak, can someone abet?
Answers:    Sounds like the compressor grease level is low which will grounds the rings not to expand inside the cylinder.
You did not say the type of craftsman compressor: Piston, Vein,Screw; etc.