propane bleeder valve turns but no bleed off ,

Overfill protection valve stuck? Portable tank?


Very slowly open the normal valve until you hear a constant hiss. Slowly close it, try the bleeder. Lightly bang the tank and retry.

no portable, its on my motor home belly tank ,but I,m gonna try your idea, taping etc.

Probably debris in the bleeder. Propane dealer likely knows what he is dealing with, but some will not fill if that valve is not clear, as a matter of policy. Unless really old, the fill valve has a overfill shutoff, but many people doing the filling will not rely on that and want to use the spitter valve to tell when liquid level is reached.

The valve can be replaced, but the tank has to be emptied.