Are you saying that all the contamination is at last contained inside the dryer? In other words I don't need to worry about the expansion valve or evaporator needing replacement?

Hello everyone, greetings from Florida! Can anyone point me in the right direction to trouble shoot my a/c? It stopped to cool a week ago and I want to fix it myself - if possible :) . I am going to need a/c gauges, please recommend me a brand/model :?: . Also, days before it quit I could hear a met...