Stephen S Cary , NC June 30, 2020 Appliance: KitchenAid Refrigerator, French Door KFCS22EVMS8 Kitchenaid Refrigerator Kfcs22evms8: Hammering sound coming from the water filter assembly and reduced flow coming out of the dispenser. How to replace Whirlpool Refrigerator Water Filter Head. Removed and replaced the water filter head. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes