Posted by Tom on February 12, 2000 at 09:08:02:
In Reply to: Re: Hot water baseboard/boiler banging, then shutdown posted by jtown on February 12, 2000 at 08:52:04:
: Banging was probably not air but delayed ignition. If the reset you pushed was on the burner's primary control. It may be the problem that destroyed your combustion chamber or was created when that work was done. Readers should look hard at chambers that someone has said has deteriorated. If there is a lot of snowy-white surface at the breaks, it may have been smashed in order to sell a new one. One that fell apart a while before will get dirty. Your nozzle or filter may be plugged, air or nozzle settings off etc. The waterside should have little effect on the fireside unless it was a high temperature limit etc that caused the stoppage. The well presssure is reduced to the 15-20psi on your boiler gage by the auto fill based on the spring pushing on it. The screw moves the spring in and out to set.
Thanks for the reply. I had the delayed ignition problem you refer to - that was ore of a one-time bang/explosion when the boiler fired. I guess that was what destroyed the combustion chamber liner. The banging I have now sounds alot more like the banging pipes you get with steam heat, but much louder, and not in the radiators. It starts a minute or so after the boiler fires, and persists until a few seconds after the boiler shuts down. I don't think it is related to circulation, because the circulator keeps running after the boiler reaches the high temp cutoff, but the noise stops a few seconds after cutoff. Seems like it is related to steam in the boiler itself somewhere, but that shouldn't be, unless my baffles are clogged? Would it hjelp if I drained the boiler to see what I get out?
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