Secondary Regulator Broken?

[drgonzo2k2]

Hey gang, looking for some advice. Today I put a new keg in the kegerator and was cranking up the pressure on one of my secondary regulators to burst carbonate the beer. Somewhere between 40-45 PSI the regulator made a "ping" noise, and now it doesn't seem to regulate the pressure any longer. It just matches whatever my primary regulator is at.

So if I set my primary to 30 PSI and purge the pressure, the secondary will go to 30, no matter how much I turn it down.

If I turn my primary down to 10 PSI and purge the pressure, the secondary will go to 10.

Etc.

What could be wrong here?

 

[day_trippr]

Is it possible the regulator spring snapped?
You'll have to depressurize the system and remove the regulator bonnet to find out, but that's about the only thing I can think of that would "ping" and leave the regulator wide open...

[edit] No, that's exactly backwards. If the spring snapped the reg would close tight.
So, either a blown diaphragm or the pin valve went to Heaven...

Cheers!