We completed our 1st AC maintenance of the year. I had found a few minor issues with the unit. I also gave options for the homeowner to decide what they want to do. 1. The blower fan and the air hammer needs to be removed in order to be properly cleaned. 2. The refrigerant dryer may need to be replaced because it's showing signs of rust. This is one of the number 1 locations for Refrigerant leaks.