Customer Questions and Answers for Upper Spray Arm by Whirlpool

The upper spray arm distributes and spins wash water to clean items on the upper rack. Replacing a cracked or clogged arm restores proper spray coverage, rotation, and top-rack cleaning performance.

• Distributes wash water to the upper rack through spray jets
• Rotates using water pressure for even coverage
• Common symptoms: top-rack dishes remain dirty after a cycle
• Spray arm not spinning or getting stuck due to debris or damage
• Visible cracks or clogged holes on the arm

• Disconnect power at the breaker; shut off water if needed
• Open the dishwasher and remove the upper rack if required for access
• Release the retaining nut/cap or tab, remove the old arm, and clear debris
• Seat the new arm, secure the retainer hand-tight, and run a test cycle