How to replace a dishwasher lower spray arm

This DIY repair guide gives instructions on how to replace a lower spray arm in a dishwasher. The lower spray arm attaches to the pump outlet and sprays water throughout the dishwasher to improve cleaning. If the lower spray arm cracks or splits, you may notice your dishes are not getting clean, or you might find water leaking at the bottom of the dishwasher door. Replace a broken lower spray arm using the manufacturer-approved dishwasher part.

Use this procedure to replace the lower spray arm in some Kenmore, Whirlpool, KitchenAid, Amana, Maytag and JennAir dishwashers. You also can use the same basic steps to replace the lower spray arm in some GE, Frigidaire, Electrolux, Samsung and LG dishwashers.

Instructions

1. Remove the bottom dishrack

Open the dishwasher door and pull out the bottom dishrack.

2. Remove the lower spray arm

Rotate the mounting bracket on the bottom of the lower spray wash arm a 1/4-turn counter-clockwise to release it from the pump outlet. Pull the spray wash arm up and off of the pump outlet.

3. Install the new dishwasher spray arm

Position the new lower wash spray arm on the top of the pump outlet. Press it down so it seats completely on the pump outlet. 

Rotate the locking bracket a 1/4-turn clockwise to lock the arm in place. Tug up on the lower wash spray arm to make sure it's seated and locked in place.

4. Reinstall the lower dishrack

Slide the lower dishrack back into the dishwasher.