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Posted by Dave on May 26, 2006 at 14:37:53:
In Reply to: Re: could we have combustion problem? posted by HeatPro on May 25, 2006 at 20:06:08:
I have no clue.....Here's what i did.
I closed the valves to isolate the boiler and relieved the pressure. I replaced the bad T&P gauge and then let some more water run through the boiler before recharging the system and restarting it.
It is completely silent again.
And I closed the boiler outflow valve about 10%. The DDT reads between 20-25. It seems like the DDT decreases on its own from 25 to 20 as the boiler nears operating temp.
Any ideas why the sound would have gone away?
Only time will tell whether it comes back.
The pressure needle on the new inlet gauge does move back and forth a little but not vibrating like the old one did. Is that normal to see a few psi of movement?
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