II have purged my system about 4 times and changed the circulator but the flow of hot water only seems to go to the basement and not the 1st or 2nd floor. The boiler fires up, I can feel and hear the circulator getting hot and the pipe from it but it doesn't go upstairs.
I drained the boiler several times but the heat still fails to go past the basement. Can the expansion tank have anything to do with it?
I checked all around the house there are no bleeeders installed anywhere on the baseboard heaters so I can't bleed air from them. What else can I do to get the air out if that is the issue?