Although I clean all filters on all AC units every time I’m at Ozuye, sometimes cleaning the filters isn’t enough. I could clearly see the AC in the great room being dirty and dusty beyond the filter. So I took off the housing and managed to reach the blower, which was full of gunk.

Above shows what I cleaned out, using a long brush. After cleaning the housing everything was put back together.

Now it looks as clean as when I installed it.