The air filters in my 2 ac unit were never replaced in 10 yrs if not longer. After taking apart, I found the fins were completely clogged. I cleaned them, put the filters back in, and now it's like a meat locker in my fridge. I'm renting. This was a piece of cake, except for the fact once I took it apart, I was shocked how disgustingly filthy it was. Shame on me lesson learned though but what a difference. I can't believe you guys had that veg pan shelf. You saved the day thanks again.