Back to Training HVAC 101 0% Complete 0/0 Steps Remove Locking Refrigerant Caps 5 Inch Media Filter Replacement Ladders, Drops & Attic Access Heating Sequence Of Operation - Standard Furnace Duct Inspection Drawing A System Finding Signs Of Rats In The Attic Space Insulation Check Dampers Explained HVAC 101 Finding Signs Of Rats In The Attic Space Video 7 of 9 In Progress ← Previous Next→ Finding Signs Of Rats In The Attic Space When you find signs of rats, share your findings with the homeowners.