Fridgidaire Washing machine on final rinse takes forever to fill up with water. It only happens on the final rinse, it takes 45 minutes to an hour. Any one have a clue, or do I need to reset something on this unit.

Check the strainer in the cold hose. Many washers use only cold on the rinse and if the strainer is plugged it will take forever. You probably are using a warm wash and the hot is doing most of the filling. Check the supply valves for proper flow and make certain that the hoses aren't crimped. Be smart, check both strainers periodically. That way the hoses and all will get an inspection and problems will get caught before a flood.