Open the air handler to check the evaporator coil. Clean the air conditioner coil. Cleaning will not fix the problem if there is a refrigerant leak. This should only be repaired by an HVAC technician.

A vacuum leak can be a huge problem for your car, and it can also be incredibly difficult to diagnose. Fortunately, these ...

a leak in the evaporator releases only refrigerant vapor. A clogged drainage channel is a common cause of water in the front foot wells.