Hi all,
I purchased a house with a PB-105, which ran great for about a month this winter then the ESP crapped-out (accompanied by an acrid burning smell); I replaced the sensor, gave the boiler a thorough cleaning and fired it up again - 6 blink error this time, with half-burned pellets in the ash pan, acrid smoke smell, and a blackened viewing window. I checked the vents, and chimney, cleaned the boiler again, replaced the ESP again; and same issue keeps occurring. The pellets I'm burning work fine in my pellet stove, and the only thing out of the ordinary in the boiler that I can see I'd that the burnpot has two parallel cracks running down the centre and is "bubbled" in the middle. I don't have a Harman dealer in town anymore, so any suggestions on what might be wrong and how to fix it would be greatly appreciated.
I purchased a house with a PB-105, which ran great for about a month this winter then the ESP crapped-out (accompanied by an acrid burning smell); I replaced the sensor, gave the boiler a thorough cleaning and fired it up again - 6 blink error this time, with half-burned pellets in the ash pan, acrid smoke smell, and a blackened viewing window. I checked the vents, and chimney, cleaned the boiler again, replaced the ESP again; and same issue keeps occurring. The pellets I'm burning work fine in my pellet stove, and the only thing out of the ordinary in the boiler that I can see I'd that the burnpot has two parallel cracks running down the centre and is "bubbled" in the middle. I don't have a Harman dealer in town anymore, so any suggestions on what might be wrong and how to fix it would be greatly appreciated.