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Table of Contents

Getting Started: Safety First

Step-by-Step Instructions: Replacing a Blocked Dishwasher Spray Arm

Installing the New Dishwasher Spray Arm

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Simple Steps to Replace a Blocked Dishwasher Spray Arm

5 min readUpdated Jun. 13, 2024Lyle WeischwillDishwasher
Simple Steps to Replace a Blocked Dishwasher Spray Arm

If the dishes in your dishwasher are no longer getting clean, it could be the spray arm is clogged. While it’s sometimes possible to clean the spray arm, it can become completing blocked over time, necessitating its replacement.


  • The spray arm is crucial for ensuring dishes are thoroughly cleaned by dispersing water throughout the machine, but it can become blocked over time, affecting the dishwasher's performance.
  • Before starting the replacement process, it's essential to disconnect the dishwasher from its power source, wear protective gloves, and place towels underneath the dishwasher door to catch any spilled water, ensuring a safe working environment.
  • Replacing a blocked dishwasher spray arm involves identifying the blocked arm, gathering necessary tools such as a screwdriver and pliers, removing the old spray arm, selecting the correct replacement part, attaching the new spray arm following proper instructions, and testing the dishwasher to ensure the new spray arm functions correctly.

Is your dishwasher not cleaning dishes as thoroughly as it once did? A blocked spray arm may be the reason. Fortunately, replacing a blocked dishwasher spray arm is a fairly easy job you can take care of yourself. It's crucial, though, to follow the proper safety measures to avoid accidents.

In this comprehensive guide, we'll lead you step-by-step through the process of replacing a blocked dishwasher spray arm. We'll also share useful advice and directions to make the job simpler for you. When you reach the end of this guide, your dishwasher will be functioning optimally once again!

Getting Started: Safety First

Welcome to our guide on how to replace a blocked dishwasher spray arm. We'll begin with an overview of why a functioning dishwasher spray arm is essential and what safety steps you should take before starting the replacement process.

A dishwasher spray arm is an essential element of your dishwasher. It disperses water throughout the machine, ensuring your dishes are thoroughly cleaned. Over time, the spray arm can become blocked with food particles, mineral deposits, or residue from the dishwasher detergent. This can affect your dishwasher's performance and result in dishes that aren't cleaned properly.

Before you begin replacing a blocked dishwasher spray arm, it's important to follow some safety steps. First, make sure to disconnect your dishwasher from its power source by unplugging it or switching off the circuit breaker. This will prevent any electrical mishaps while you're working on the appliance.

Also, consider wearing protective gloves to protect your hands from sharp edges or broken parts. Since you'll be working with water, it's a good idea to put towels underneath the dishwasher door to catch any water that may spill. This will help prevent any water damage to your kitchen floor.

By following these safety steps, you can ensure a safe and successful replacement of your blocked dishwasher spray arm. Now, let's move on to how to replace it step by step.

Step-by-Step Instructions: Replacing a Blocked Dishwasher Spray Arm

If your dishwasher's spray arm is causing issues, it may be blocked and need to be replaced. A blocked spray arm can prevent your dishes from being cleaned properly, leading to frustration and inconvenience. Luckily, replacing a blocked dishwasher spray arm is a fairly simple task that you can handle yourself. Follow these steps to get your dishwasher back in top shape:

Identifying the blocked spray arm

Before you begin the replacement process, you need to identify which spray arm is blocked. In most dishwashers, there are two spray arms - one at the bottom and another at the top. Inspect both spray arms to find out which one is causing the problem. Look for any visible debris or blockages that might be clogging the spray arm's holes.

Tools needed for the replacement

To replace the blocked spray arm, you'll need a few basic tools. These include a screwdriver (usually Phillips-head), pliers, and a replacement spray arm. Be sure to check your dishwasher's model number and buy the correct spray arm that matches your specific appliance. You can find replacement spray arms at your local home improvement store or online.

Removing the blocked spray arm

Start by disconnecting the dishwasher from its power source to ensure your safety. Next, take out any dishes or racks that might be in the way of the spray arm. Use your screwdriver to remove the screws that hold the spray arm in place. Once the screws are out, gently lift the spray arm off its mount. If the spray arm is stuck, you can use pliers to carefully loosen it. Remember how the spray arm is positioned, as you'll need to install the replacement arm in the same way.

Installing the New Dishwasher Spray Arm

When your dishwasher's spray arm becomes blocked, it's time to replace it with a new one. Here's a step-by-step guide on how to install the new dishwasher spray arm.

Selecting the Correct Replacement Spray Arm

Before you start, make sure you have the correct replacement spray arm for your dishwasher model. You can look up and order the correct replacement part on our Sears PartsDirect website ( Us the model number for your dishwasher to access the correct parts list for your dishwasher model. Use the Chat feature on the site if you need help selecting the right replacement spray arm.

Correctly Attaching the New Spray Arm

Start by turning off the power to your dishwasher. Open the dishwasher door and locate the spray arm assembly. Pull off the old spray arm. You may need to remove it by turning it counterclockwise if you can’t pull it straight off. Refer to the owner’s manual for your dishwasher for instructions to remove the spray arm.

Take note of how the spray arm is attached, as this will help when installing the new one. Then, position the new spray arm and push it down in place or twist it clockwise to secure it. Make sure it's tightly fastened to prevent any leaks during dishwasher operation.

Testing the New Spray Arm

After the new spray arm is in place, close the dishwasher door and turn on the power. Run a test cycle to make sure the spray arm is functioning correctly. Listen for any unusual noises from the dishwasher and check for any leaks or obstructions. If everything appears and sounds good, you've successfully installed your new dishwasher spray arm!

If you need to have a service technician replace the dishwasher spray arm for you, schedule repair service online and we’ll send a Sears Home Services Technician to your home to fix the dishwasher.

Schedule your dishwasher repair now!

With extensive experience, our technicians are skilled in repairing dishwashers of all makes and models, ensuring sparkling clean dishes with every cycle.

Call (213) 596-2538 or schedule online now.

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