Had issue with freezing lines with my A/C.
Took 3 visits over 2 weeks for them to figure it out and was told only one charge to diagnose due to issue not resolved but got charged more than once.
Each time a tech would come out they all had different opinions on what the issue could be and left on my own to troubleshoot pretty much as neither tech provided resolution. And with expensive service calls to boot when they could not resolve the issue. Apparently they claim a wiring issue for wires I did not even touch within a poorly wired setup at the furnace. 3 techs touched the wiring and I get dinged for messy wiring.
Go with some one else if your money and comfort means something to you as I cant trust them moving forward.