We bought this house in Dec 2011 and it came with a home warranty. Needless to say, I have learned these home warranties are pretty useless when it comes to older systems. All they do is put band aids on it and they never fix it completely. Over the past 2 months, I have had the home warranty contractor out 6 times working on my upstairs heat pump. The inside air handler unit is a Payne Model # PF1MNC025 and the outside heat pump unit is an Amana unit that is at least 18 years old. Back to the home warranty contractor. After the 2nd visit, they recommended to the home warranty people that the outside unit be replaced because it wasn't compatible with the indoor unit & thermostat (the technicians words). Well, the home warranty folks decided to send another contractor out and after 4 visits they have determined that the outside unit needs replaced. Just to make sure they don't try to just put a band aid on it again, I decided to call a reputable HVAC contractor locally and have him come out and look at my system(s) and give me an estimate on replacing. He tells me that he cannot replace the outside unit without replacing the inside unit as well because they won't match up and it will void the warranty on the outside unit. He also said it would violate state board rules in Alabama to mismatch the units. This sort of contradicts what the home warranty people are telling me as they are giving me an estimate on replacing only the condensing unit outside. I have another contractor coming out tomorrow to give me an estimate and I want to see if he says the same thing about having to replace both. My question is, Is there an outside unit that will match up to the Payne inside unit referenced above. The label on the Payne indoor unit says it was manufactured in 2009.
Any insight would be greatly appreciated as I know very little about HVAC units.
Thanks in advance.