Hi,

We have a big Freiderich's in the wall ac unit in our kitchen that
seems to be really dirty. I am seeing black debri chunks coming down
on the kitchen floor. It looks like dirt but it's kind of dry and
hard and not heavy - almost like cardboard.

I can see a bunch of it when I look inside the unit from the kitchen.
It's been up a long time now. I've always cleaned the filter, but
this is different.

How can I clean this? Should I call a repair company and have it
serviced?

It's been a great unit so far. Hope we can fix this.

Thanks in advance for any tips,
Steve