Bad Sequencers Inside AC unit

Take it to an electronics tech who works on circuit boards all day everyday and he can tell you exactly what is wrong. Let an AC tech look at it and you’re screwed.

I assume he meant controller. Akin to an ice box or a clicker.

Ya so sequencer means main controller in the same way a doctor would say djxuvyduhrth carcinoma instead of ball cancer. He is going to throw parts at it the same way an auto tech would.
Take board to an electronics tech and find out what actually failed and how to fix it. This isn’t hard, you just have to bypass the people that think it is. It’ll likely come down to a single contractor where you would want to replace the wires and the contractor for that circuit but not throw darts at the entire system.