Technician either untrained or dishonest.
We have had the same issue every year for ten years when turning on air conditioning: a switch needs to be thrown in the condenser. Used Bardi last year, and advised. No issue. Called Bardi this year, advised same problem. The Bardi tech, 'Nihad', bumbled around for over two hours. He finally insisted there was a leak in the freon, and possibly some other problems. He said charge was $295 to do a "leak check", about $150 - $200 for the freon, plus whatever else needed to be done to fix. He attached guage to show there was no freon. I didn't believe it. I called another company, who immediately detected the problem, which was exactly what we sai it was, showed us how to throw the switch, and attached gauge to show there WAS freon. He showed us that the Bardi tech didn't remove the cap or turn the switch on the condenser where you attach the gauge to check the freon, which is why his reading showed no freon. How does an HVAC tech NOT know how to check for freon. That's hvac class 101. Either he was improperly trained, not trained, or dishonest, trying to sell us phony stuff we didn't need.