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 replacement 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.

Repair difficulty:
Time required:

Less than 15 min.

Parts Required

  • Lower spray wash arm

For manuals, repair guides, and specific part recommendations, enter your model number.

Tools Required

  • None


 Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.

Step 1: Remove the bottom dishrack

Open the dishwasher door and pull out the bottom dishrack.

Step 2: Remove the lower spray arm

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

Step 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 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.

Step 4: Reinstall the lower dishrack

Slide the lower dishrack back into the dishwasher.