had a heatpump installed in a rent house 9 mons ago,800 sq ft house,never had duct work so,because of renthouse paid to have it done by a certified man who i've used before and trust.a goodman was installed,split system.renter called last week and said he had no cool air,called the installer,he billed us for thawing out unit,replacing service port core and adding pd and a half of r22.i asked about why goodman doesn't warranty a 9 mon old unit...he said they don't cover labor and freon,and he really did try to,i know he buys from johnstone....long story short i really feel any unit should last a year without me paying for anything...it sounds like it would have been the same if this would have happened a week later.....i think enough of the installer that he shouldn't have to eat the cost either...is this what the hvac business has come to..