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Jaschance 02-08-2010 05:58 PM

Boiler pressure relief valve leaking
I have a residential oil fired boiler with a relief valve set at 30 # and the pressure on the boiler reads 13#. Is this simply an old valve or could there be another issue? Its a slow leak . A drip every 6 seconds . Any advice would be appreciatted.
Thank You

beenthere 02-08-2010 07:10 PM

Expansion tank is probably full. And relief valve did its job. But is worn enough that it can't close.
Drain tank and replace relief valve.

oh'mike 02-08-2010 07:52 PM

Been there---What he said!

Jaschance 02-08-2010 11:05 PM

Thanks for your replies. The valve between boiler and expansion tank was leaking as well. I was able to tighten the valve and it stopped leaking. I will replace the pressure valve tomorrow.
thanks again

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