My Landlady just bought a new goodman outside unit. It worked for about a week then cut off. The Installer said it could have been anything and needs a new compressor. She has spent about as much as she did for the upstairs unit (a payne) that works fine after 12 yrs of operation. What's the deal with these new units? Are they that poorly made? I suggested she get a second opinion and that guy said she needed a new compressor, inside coil, new lines (the first guy change these before he hooked up the new unit) a super duty inline filter that would need to be serviced four or five times to make sure the "acid" was removed because the freon turned to acid when the compressor froze up. All this without testing anything. Is it that obvious that the goodman compressor did all that? She believes him because he told her he didn't want the job. Anything of this sound hinky to the board of experts?