Tanya D Addison , TX October 30, 2015 Appliance: Whirlpool 24" Ada Undercounter Dishwasher GU3100XTVS0 Whirlpool Dishwasher Gu3100xtvs0: Door would not lock. How to replace Bolt-Latch. Replaced bolt-latch 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes