My friend, an 80+ year old widow’s AC went out. She called Air Rescue, and they charged $400 to change the thermostat. (We just paid a lot less for the same thing thru another company.). In addition, they insisted that her inside unit needed to be cleaned for $800. He was very persistent, but she said she couldn’t afford it. (True.) I would be very wary in using Air Rescue! What? This site requires a minimum of 100 words in the “More Details” section in order to post! Crazy! So please ignore the nonsense I have to type to get to the 100 word minimum. 70 words in 1st paragraph. 35 in 2nd. In my world that is over 100!