Tom S Shelby , MI January 18, 2019 Appliance: Whirlpool Undercounter Dishwasher GU1500XTLQ3 Whirlpool Dishwasher Gu1500xtlq3 / : Broken door locking switch. How to replace Door Switch Assembly. Replaced the Switch. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes