The HVAC technician we hired could not fix the furnace

The HVAC technician that we hired to work on the HVAC season could not fix our furnace for some reason.

• To be honest, I have my doubts that he was actually a certified HVAC technician.

He had a card from his company and everything, and basically he seemed legit, but I just got a weird feeling from him. From the time that he showed up at our house, I just felt like he did not know what he was talking about. Most of the time when you talk to a professional repairman like a plumber, an electrician, or an HVAC technician, they seem to know exactly what they are talking about. They even talk about things that you don’t understand at all. I’m talking about the lingo and the vocabulary that they seem to use without thinking whenever they are trying to describe the repairs and the issues to you as a layperson. Well, this guy, while supposedly being a professional HVAC technician, did not even have the HVAC lingo down himself. He kept saying things that did not really make much sense to me and I just got the impression that he did not really know what he was doing. it turns out that I was right, too! He worked on our furnace for about an hour and a half, but by the time he left, he still did not have it fixed. It was running just as poorly after he left as it was when he got there. I have a bad feeling that we were somehow scammed by this guy.
air quality