Well got to enjoy a sunny day here in central PA, with the 453 , then decided to put on the ac , out blows leaves and such . Off goes the blower . At home I opened up the cabin air filter to find it full of moss, leaves and some kind of hair . Out that came and vacuumed it out , the blower fan can be accessed by using two screw drivers to open up the recirculate door (looks like a clam shell) to access a view to the fan blades. Mine was packed with dry moss and leaves etc . I used small tube attachments to vacuum pieces of the nest enough that I could then use the bigger end of the vacuum to suck it out. I was successful , but it was a pain in the rear contorting yourself to do it . I set up a bunch of mouse traps inside the garage , and hope it doesn’t happen again . What a joy . My question is how in the hell did that critter get in there ? Where is the blower outside air coming from ? There has to be an inlet somewhere ?