Vern L Orange , CA July 11, 2021 Appliance: General Electric Dishwasher HDA2000Z07AD Ge Dishwasher Hda2000z07ad: Water spray tower broken off by tenant, no wheels on bottom rack (installed wheels). How to replace Lower Spray Arm. Purchased entire spray arm and installed it, works like a champ. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes