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alecmcmahon 10-18-2010 09:06 AM

Boiler blowing pressure relief valve
( this is a branch off of my orginal thread i think i posted in the wrong section, )

I had accidentally removed all the air from my expansion tank yesterday, then i started blowing the pressure relief valve @ 30 PSI.

In order to fix the problem, I removed the expansion tank from the system, drained all the water out. I then filled the expansion tank to 15 PSI then re-installed the tank onto the system.

Though now I am still blowing the pressure relief valve, Im starting out at about 18 or so PSI, then it gradually keeps building pressure as the system is running till it blows @ 30 PSI.

Any thoughts on what could be wrong?

beenthere 10-18-2010 06:52 PM

Turn off the manual valve tot eh auto water feed.

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