Called out today due to no cooling. Upon arrival I found that the system was frozen. Went to the attic and found the return plenum hanging by tape. Hot attic air is entering the air handler and causing excessive condensation. Emergency pan is rusting out due to this problem reoccurring. Install team will return tomorrow to replace plenum and seal system. We will clean the evaporator coil during the process. Thank you for choosing Total Air While on site removed old return Plenum built new return plenum with heat shield in mechanical fasteners and hung properly reattach existing return ducks built return boot cleaned indoor evaporator coil in place flush drain pan re-glued drain air handler due to it not being glued vacuumed out secondary pan added P-trap outside on drain line started system up and insured system was operating factory spec, and draining properly. Customer satisfied balance has been collected.