Dispatched to investigate a no cool single system home. Upon arrival I spoke with Greg and he told me that it was the primary drain line plugged up, interrupting the thermostat. I looked in the history and the diagnostic and found four pages of loss of communication. Since the in-line float switch deactivates the thermostat it thought there was a problem with a wire. Greg cleared the drain his self and it is operating properly. He is concerned about the amount of refrigerant that I added in 2023 then we added more on the last trip we were here. I performed an electronic leak search and did not detect anything. I documented the readings on the compressor charge at 100% capacity.