Martin E Broken Arrow , OK July 12, 2021 Appliance: Whirlpool Undercounter Dishwasher GU2455XTSS0 Whirlpool Dishwasher Gu2455xtss0: The dishwasher would not stay in place because the undercounter brackets were snapped. How to replace Dishwasher Undercounter Mounting Bracket. I purchased new brackets and installed them. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes