Bought the house last year. AC seems to be weak - when it is 83(28C) outside it runs constantly to bring house to 76(24C). Unit is KeepRite 15 years old. I've replaced air handler blower (it was drawing more than twice the current it was supposed to) and outside condenser fan motor (too much noise) as well as air filter.
Strange thing - when the unit is running only top 20-25% of the outside condenser radiator is warm, the rest to the bottom has outside temperature. The exposed copper line that goes into internal evaporator is warmer to touch than the 'hot' part of condenser radiator ~95+(35C+) and not even close to outside temp. Both coils are clean; air handler blower is constantly on 'high'.
Called couple places for estimate to check/recharge the system and one said that lifespan of the AC is 14-15 years, don't waste money fixing it. Is this really neccessary or it can be tested/recharged to run for a few more years?