Franklin TN Home Inspector located water damage to the HVAC unit located in the upstairs attic. The primary drain pan which collects approximately 8 to 12 gallons of water a day during the summer months often becomes clogged allowing water to over spill the primary drain pan dumping water down the HVAC cabinet into the secondary drip pan. When found in this condition in the winter months, it cannot be determined if the unit has been successfully repaired. The outside ambient temperatures must be above 65 degrees before the ac unit can be operated.