BEWARE didn't do check out as said!
I watched this guy today talk on his phone out my window for 15 mins.Got to my house a around 1 and done total in 30 mins. Then said he was done. Did nothing but, offer me a new thermostate. I asked what he did and he gave me a whole list. I don't complain but, feel others should know not to buy there plan to keep unit clean. Waste of my money and time!