I purchased the preferred service package this past summer. Since the technician came out yesterday for the 6 month’s check… my service package had expired in just one day. So no discounts on parts. The technician yesterday supposedly cleaned and checked everything but failed to turn the power source back on. He then checked the temperature before he left stating it was putting out 80 degree air and said it was fine. When I awoke this morning, not even 14 hours after the technician left, the temperature I. Our house was 64 degrees. My only wish would have been a more thorough inspection before today.