Technician arrived on time and he was very friendly. He explained the operation of my unit and answered all of my questions. He found a problem with my humidifier and the outside unit and was able to get both working again in a very short time. Thank you Jack Lehr for employing qualified personnel to take care of my heating and cooling systems. Because you care about your customers, I don’t have to worry about my HVAC systems if and when a problem should occurred.