Jeanie A Los Osos , CA January 04, 2025 Appliance: Maytag Dishwasher PDB2430AWE Maytag Dishwasher Pdb2430awe: The upper spray arm would fall off every time i used the dishwasher. How to replace Spray Arm Nut. I removed the nut - spray, which was easy to do with just a twist (used pliers), and replaced it with the new part. Popped the spray arm back in place and the repair was accomplished!! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes