Split and wash out the "inside condensor". Pull the top off where the condensor fans are located. Set the whole condensor fan assembly on the top of the unit. Thats why you have all that extra condensor fan wire! On the end of the condensor will be some screws that are holding the condensor in place. When you remove the screws there you will find maybe 2 or even 3 condensor coils that are zip tyed together at the return bends. Seperate the coils and wash them out. They are fairly flexible. Two men are required. After you find the dirt blanket on the inside take a picture of it and post it. Then everyone will know what stops a Trane.