I purchased a Lennox Air Ease gas pack/AC unit on 2/2/12 to replace my old Trane unit. So far in two years, I have had to replace two circuit boards under warranty, but had to pay $75 labor each time. Now I switched it to A/C and the unit won't run, repairman just said the compressor is locked up. It is under warranty, but the labor will cost $600. Stay away from this brand.