Help me out here. I scheduled my HVAC guy out to check my A/C unit and make sure all was up to par before we really get into the summer heat wave (I'm in Rock Hill). His guys come out and service both units for Spring maintenance. Same night, the upstairs unit is no longer cooling and it is 80+ degrees upstairs. He was super helpful with tips on things to try myself when I told him what was going on. We have not had a problem with the unit before, even in the heat wave we had last week. He is still trying to help, but from the sounds of it he is thinking the unit will need to be replaced. Looking like $4500 to replace something that was working before they ever came out. I asked around about way mentioned it was coincidental that it just stopped working, but he did not really address that. I'll ask again. I've only been in the house a year and the units are 11 year old and made by Trane, when I think they were still made in the US. Tell me TI, I'm I being to paranoid worrying about this not being fishy? I like the guy and he is not one of the big box guys like a Brothers Air.