Completed with ac 2 on 2002 Amana gas horizontal in attic, 2 and 4 ton . 4 ton is struggling to keep up with temperature set on thermostat. Found compressor rattling, pulling high with a weak capacitor and slightly low on refrigerant, 2 ton has a capacitor over reading and pulling high . Both filters need to be replace but customer doesn't have any right now. Giving customer the option to do all preventative repairs, minimum repairs or complete units upgrade. Customer needs to talk to wife before making any decision.