I am new here and had a question. I just had a 13 seer 2 1/2 ton Trane gas pack put in last Wednsday. It was unseasonably warm that day and once the men were done, they showed me how to use the digital thermostat, turning on the air and cooling the house down. Ran like a champ. Now today, it is pretty cool and we go to turn on the heat and nothing is happening, not even the air. We checked out the breakers, everythings fine there. I don't know if it's the thermostat (I had hoped I wouldn't have to take a class to operate it) or if something much more serious is involved. Of course, this happened on a Saturday and there is no one at the office who can talk to us or come out. Even the emergency on call guy is not taking our calls. The guys forgot to leave me the manuals to the thermostat and the gas pack so those will be sent to me next week. Any ideas?