jldamico
New Member
Over the past couple days I've started having issues with my boiler. I have Dunkirk. I do not have a separate hot water heater/tank. There was some knocking, I assumed some air in the system. A couple of nights ago, it got VERY loud and made a sudden...for lack of better word..."crashing" noise". I went down to see a room full of steam and a drip/some steam coming from PRV pipe. I also occasionally get a bang/clicking that SEEMS to be coming from aquastat transformer.
Yesterday, I replaced the expansion tank. No luck.
The odd part is that the major issue..the loud crash and the PRV discharge only seems to occur when someone is showering, not when the systems is calling for heat.
The Honeywell aquastat is set at 160 low and 180 high.
I finally had the chance to actually check the gauges while someone was showering. PSI was climbing at/near 30 and the temperature was at 260. At that point a got some distance from the boiler. lol. Moments later, another PRV discharge/room full of steam.
From what I've read, after excluding expansion tank as the problem, it could be a faulty aquastat? But wouldn't that also cause a problem during the house calling for heat or simply the boiler regulating temp?
Another possibility is pump? Not pushing enough water through the system? Or a coil leak?
Any thoughts would be greatly appreciated.
Yesterday, I replaced the expansion tank. No luck.
The odd part is that the major issue..the loud crash and the PRV discharge only seems to occur when someone is showering, not when the systems is calling for heat.
The Honeywell aquastat is set at 160 low and 180 high.
I finally had the chance to actually check the gauges while someone was showering. PSI was climbing at/near 30 and the temperature was at 260. At that point a got some distance from the boiler. lol. Moments later, another PRV discharge/room full of steam.
From what I've read, after excluding expansion tank as the problem, it could be a faulty aquastat? But wouldn't that also cause a problem during the house calling for heat or simply the boiler regulating temp?
Another possibility is pump? Not pushing enough water through the system? Or a coil leak?
Any thoughts would be greatly appreciated.