Did you clean the keg tubing? It may be clogged. Jack up the pressure to 30-40 psi and blow the tube clean. Then lower pressure down to original dispensing pressure and bleed excess off. I have also frozen kegs by accident.
Why yes, yes I am a metrosexual!
On taps 1,2&3: Una Mas Cerveza, Ham in a Can, IPA
Primary: XINGU Clone, Rye P.A.
2ndary: Low Gluten IPA, Bourbon Oak Aged Vanilla Porter
Kegged: Sh*tty Orange Hefe, Una Mas Cerveza, Smokin Hot Blonde, Belgian Dubbel
Next up: Una Mas Cerveza, Pecan Pie