Ira H West Babylon , NY March 15, 2025 Appliance: Whirlpool Undercounter Dishwasher WDT910SAYH1 Whirlpool Dishwasher Wdt910sayh1 / : Upper spray arm was damaged. How to replace Dishwasher Spray Arm. Ordered a new spray arm and installed it as per instructions received on the website AppliancePartsPros.com. Easy! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes