Completed with ac 1 on a 2007 trane gas horizontal in attic 4 ton, found unit partially working due to low r22 refrigerant levels, evaporator coil very rusted, blower motor leaking oil, fan motor over heating with start up amps from the very high melting wires and fan motor overheating. Giving the option to do all preventative repairs or replacement due to cost of repairs and being r22 unit. Left estimates for unit replacement. Customer needs a little bit of time to make a decision.