I am called a jack of all trades by many.
I can do a lot of strange things.
One of which is sporadically I can undoubtedly repair my own central heating and air conditioner system depending on what goes wrong with it. I am no certified heat and a/c specialist and I suppose by messing with my central heating and cooling system not being certified I possibly could break it totally. However I am not worried about that at all because if I can not service something or do not suppose what is wrong, I will call the local heating and air conditioner supplier and have them send out a certified heat and a/c specialist to repair the central Heating and Air Conditioning system regardless. But when it is something small love a fuse being blown or the air compressor going out, these things I suppose how to fix! I will just buy an air compressor from a local heat and a/c supplier and swap it out myself. This saves me a few hundred dollars. The same with a blown fuse in the central heating and air conditioner system. But when it comes to something love a motor being dead or other heat and a/c system concerns, that is when I will call the heating and cooling supplier separate from even thinking twice about it. I may be self strong so to speak and am ready to take on any task, although I am not stupid either. I suppose when a tploy Heating and Air Conditioning professional is required to repair the central heating and air conditioner system unit!