Hello my name in Ned. I live in Northern Saskatchewan, Canada. I am a third year plumbing apprecntice. I work for a plumbing, heating and electrical company. The community is approx. 2000 people so there is only one other company in the community that does the same work as us. My journeyman is a journeyman that is never on site or in the field. He just hands you a work order and tells you to go figure it out yourself. I know that, that is not the correct way to learn but it is all that I have at this time. Our company hired a new journeyman who appeared to be alot better but then his past caught up to him and we learned that he had a major crack habit and has been awol for several months. So I am all along once again....
Here is what I am facing. We install several Armstong furnaces. Most installs work out well with no call backs. We have a few that are just killing us will call backs. They all seem to be issuses with pressure switches. Or so it appears. The one that is hurting the most right now will run for a week and then shut down. The code on the boards says pressure switch. Cycle the power and the furnace will run again for days or even weeks. I have checked venting and have found nothing. Pressure switch tests fine with a multimeter and I have even changed the pressure switch 2 times (doing as I was told). On the older style Armstrongs we have piped the condensate with a tee and and vent and everything has been fine. On this neweer Armstrong the installation manual calls for the condensate trap. My journeyman (old school) told me the traps are a waste of time and to pipe them the way we do the other furnaces. So on this one that is what was done. Not sure where to turn anymore. My journeyman now figures it is the board and wants to change that out. I do not want to become a "parts changer". I want to become a proper troubleshooter.
I am not asking for someone to spoon feed me any answers as I want to learn and figure this stuff out. Just not sure where to turn for help anymore. I Feel lost and out of control now. I have read several post and feel that the knowledge of this fourm is second to none and would love a teacher/mentor like some of the people here.
Thanks in advance....Ned