"I had my boiler replaced last year with a Weil Mclean Gold series oil
fired boiler"

oil? that was your first mistake , i hear its going to go over 4 dollars a
gallon this winter , especially in new england ,
propane , must cleaner and easier to service ,

sounds like your "servicing" technician , got something wrong
i could tell you what to look for , but since you have to ask what is wrong
you probably shouldnt be dicking with it , huge fire danger or soot problem ,

you could potentially makes things much worse

id look for another competent oil tech ,

mstrspy wrote:
I had my boiler replaced last year with a Weil Mclean Gold series oil