Dispatched to give an estimate on attic ventilation. Upon arrival system was running, but not cooling very well. Went to the attic to check on the ventilation situation. Performed a leak surge and discovered a leak on the upstairs evaporator coil. About the issue. Went outside and found the disconnect, about to fall apart. Advised Virginia that the disconnect needed to be replaced. Removed and installed square D on outdoor unit. I am leaving an estimate for an evaporator coil. I advised Virginia that the disconnect needed to be replaced. Removed and installed square D on outdoor unit. I am leaving an estimate for a evaporator coil. Adding refrigerant is only a Band-Aid to the situation. It will not last.