Gerard R Pittsburgh , PA April 18, 2023 Appliance: Whirlpool Undercounter Dishwasher GU1200XTKT0 Whirlpool Dishwasher Gu1200xtkt0: My dishwasher was not heating up the water during washing and not drying properly. How to replace Dishwasher Heating Element. After some research, I determined that I needed a new Dishwasher Heating Element, and replaced it. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes