We had an a/c condensation drain clog causing water damage where the central return duct compartment is torn out. Now the a/c is not cooling. The unit seems to be running. The a/c line and the coil in the furnace is iced up. The blower fan is working.

What do you think is wrong? I wondered if its because the return air is not ducted and even the furnace access panel is off with the coil exposed.

Tom