Have a car first.

They own 2 dogs & a cat. All shed fur constantly. Well this clogs the filter and got a text tonight that it froze up. That’s usually because they didn’t change the filter.

Well come to find out, the filters the have been using are barely thickER than a window screen. All the dust that has been bypassing the filter because the installers didn’t caulk or use a duct sealant on all 4 sides instead of just the top. So I have a double negative. Below was the A-coil Before & after a took a shop vacuum to it getting the slime and hair out of It.