Upon arrival tech found both 12” flex duct runs collapsed and wet. Found water dripping out of flooring into crawlspace floor. Water heater is located beside furnace, tech suspects leak in water line. Recommended having a plumber come out to diagnose. Tech also found broken float switch, sent estimate to customer regarding repairs. Would need to replace both duct lines, totaling 60 feet of 12” flex. Recommend fixing potential water leak before going any further with repairs.