Prior to a couple of months ago I would have given...

Prior to a couple of months ago I would have given A#1 at least 4 stars. They installed our system in 2017 and they were providing the twice yearly maintenance on the system, all of which we were very satisfied with. A couple of months ago we called them for service when we believed our A/C drain line had become clogged because our emergency drain outlet outside was dripping which it had never done before. The tech that came out did not even check the drain line, but stated that was not our issue and that our issue was that there was a loose wire in the air handler that was causing a diverter not to close properly so 'maybe' our evaporator coil was freezing slightly causing excess water when it thawed. Again, he never even checked the drain line. When issues returned we called again, this time we needed emergency service because our A/C was completely shutting off. The tech that came out did clear a clog in the drain line near the sink where the A/C drain line connects, but he did not test the drain line by pouring water into it at the air handler to verify that the 1 clog was all there was. The next day, the emergency drain outlet was still dripping so we called again. That night another tech comes to our home apparently mainly to humor us and treat us condescendingly. I will say that A#1 did refund us the emergency call fee which of course we are appreciative of, but we were still out the money for the first call yet our issue was not resolved. Needless to say the issues started up again, but this time we went with another company who actually listened to us and tested the drain. There was a VERY bad clog that they cleared AND they tested the drain line after clearing to be sure it was actually cleared of any/all clogs. The clog was made up of old rust particles from our previous system so the clog was not in any way our fault - no amount of vinegar was going to clear that clog. I know that nobody is perfect, but if any of the A#1 techs that came out had poured water into the drain near the air handler then observed whether the water came out at the sink drain then they could have diagnosed that there was a clog and resolved our issues. In which case, they would still have us for customers.