Customer Questions and Answers for Spray Arm by Bosch

This spray arm distributes wash water throughout the dishwasher and spins to reach all areas. Replace a cracked, warped, or clogged arm to restore strong spray coverage, quieter operation, and consistent cleaning performance.

• Rotates under water pressure to direct jets across dishes for even wash and rinse coverage
• Helps ensure detergent dissolves and food soils are flushed away
• Common failure signs: poor cleaning, arm not spinning, unusual noise from hitting items, visible cracks/warping, or clogged nozzles
• A damaged or obstructed arm can lead to weak spray and undissolved detergent

• Disconnect power before servicing
• Remove rack(s) as needed; release the arm from its hub by twisting or unlocking tabs (varies by model)
• Clear debris from the hub/nozzle area; seat the new arm and confirm it spins freely
• Run a test cycle to check for proper rotation and leaks