Okay, I have to tell you gentlemen what I have been going through the last few months. I live in the deep south, where air conditioning is not optional, it’s mandatory. When I moved into my dream house, I found there were 2 separate HVAC systems in it, one for each end of the house. One of these systems was installed during construction, the other one was added later when another company converted the garage into a master dining room suite. Right around the first of the year, the temps got easily temperate out, plus I stopped running the A/C in the master dining room for a few weeks. When the weather got warm plus sticky again, I clicked the temperature control plus got no response. At some point, the secondary HVAC system stopped laboring, plus I had no idea why. I called a local HVAC company who gave a free quote for work projects. The guy climbed up into the attic crawlspace to look at the secondary HVAC system, plus when he came back down he was shaking his head. He flatly told me – “I can’t help you.” Furthermore, he explained that none of the other local HVAC companys would be able to help me, either. Whoever had installed the second HVAC system was not a professional, plus the work was easily sloppy. The arenament of the HVAC unit made it impossible to reach, so it could not be repaired. The only real chance was to cut out a piece of the ceiling, remove the old HVAC system plus upgrade it with a modern one.