Water from refrigerator tastes bad after 5 day power outage
I am guessing that the rest of the house has no issues with smell or taste of the water. My first step would be to empty the ice tray and wash it really well with a mix of baking soda and water mixed into a paste. While the ice tray is out carefully check the ice unit for any evidence of mold or odors. Change the filter. Purge the system by making and throwing out a couple of trays of ice. Fill and dispose of a couple of gallons of water out of the dipenser.