Kitchenaid Dishwasher Float Switch: Troubleshooting Guide


The Kitchenaid dishwasher float switch is a crucial component that detects the water level in the dishwasher and controls the filling and draining process. It ensures proper operation and prevents overflows.

When the float switch is not working properly, it can lead to issues such as a dishwasher not filling with water, leaking, or failing to drain correctly. To determine if the float switch is defective, you can perform a simple test by checking if the float moves up and down freely within the dishwasher.

If it doesn’t, you may need to clean the area around the float or replace the float switch altogether. We will discuss the symptoms of a faulty float switch, its location in a Kitchenaid dishwasher, and how to replace it. Additionally, we’ll provide information on where to purchase genuine replacement parts for your Kitchenaid dishwasher float switch.

Understanding The Kitchenaid Dishwasher Float Switch

The Kitchenaid Dishwasher Float Switch is a crucial component that helps regulate the water level in the dishwasher. Understanding how it works and the signs of a faulty float switch can help you troubleshoot and fix any issues with your Kitchenaid dishwasher efficiently.

What Is a Dishwasher Float Switch?

  • The dishwasher float switch is a small device located at the bottom of the dishwasher.
  • It is responsible for monitoring the water level inside the dishwasher.
  • The float switch is connected to a float, a small plastic or metal device that rises with the water level.
  • When the water level reaches a certain point, the float rises and triggers the float switch.
  • This action signals the dishwasher to stop filling with water and start the washing cycle.
  • The float switch acts as a safety measure, preventing overfilling and potential water damage.

How does it work?

  • The dishwasher float switch works on a simple mechanical principle.
  • When the dishwasher is turned on, water begins to fill the machine.
  • As the water level rises, the float attached to the float switch also rises.
  • When the float reaches a specific height, it activates the switch.
  • Once activated, the switch interrupts the power supply to the water inlet valve, stopping the water flow.
  • This mechanism ensures that the dishwasher does not overfill with water and helps prevent leaks.
  • When the float drops back down, signaling that the water level has decreased, the switch resets and allows the dishwasher to fill with water again for the next cycle.

Importance of the Float Switch in Dishwasher Operation:

  • Prevents overfilling: The float switch is a crucial component in preventing the dishwasher from overfilling with water. It ensures that the water level remains within a safe range, preventing potential water damage to your kitchen and surrounding areas.
  • Avoids leaks: By stopping the flow of water when the float reaches the designated height, the float switch helps prevent leaks and water overflow. This protects your dishwasher, flooring, and cabinets from water damage.
  • Protects the dishwasher: Regularly monitoring the water level and controlling the water flow, the float switch safeguards the dishwasher from excessive strain that may occur due to overfilling. It helps prolong the lifespan of your appliance.
  • Ensures efficient operation: With the float switch in place, your dishwasher can operate more efficiently. It prevents unnecessary water consumption and ensures that the correct water level is maintained for optimum cleaning performance.
  • Safety measure: The float switch acts as a safety feature that prevents water damage and potential hazards. By interrupting the water flow, it prevents electrical malfunctions and reduces the risk of accidents.
  • Easy maintenance: If you notice any issues with water levels or leaks in your dishwasher, checking and replacing the float switch can be a relatively simple task. Regular maintenance of the float switch can help prevent costly repairs in the future.

Remember, maintaining the float switch and ensuring its proper functioning is essential to keeping your dishwasher running smoothly and efficiently.

Kitchenaid Dishwasher Float Switch

Signs Of A Malfunctioning Kitchenaid Dishwasher Float Switch

If your Kitchenaid dishwasher float switch is malfunctioning, you may notice issues such as a leak, the dishwasher not working properly, or water not filling up. It’s important to address these symptoms to ensure your dishwasher functions correctly.

The float switch in your Kitchenaid dishwasher plays a critical role in ensuring that the appliance functions properly. It is responsible for regulating the water level in the dishwasher by activating or deactivating the water inlet valve. When the float switch malfunctions, it can cause a host of problems, leading to ineffective cleaning and potential damage to your dishwasher.

Here are some signs to look out for that may indicate a faulty float switch:

  • Water filling or draining issues: If you notice that your dishwasher is not filling with water or draining properly, it could be due to a malfunctioning float switch. This component is designed to detect the water level inside the dishwasher and send signals to the water inlet valve and drain pump accordingly.
  • Inconsistent water levels: A malfunctioning float switch can result in inconsistent water levels in the dishwasher. You may observe that the water level is either too high or too low, affecting the overall cleaning performance of the appliance.
  • Dishwasher not starting: If your Kitchenaid dishwasher fails to start altogether, it may be due to a problem with the float switch. When the switch fails to trigger the correct signals, it can prevent the dishwasher from initiating the cleaning cycle.
  • Error codes or flashing lights: Many modern dishwashers, including Kitchenaid models, are equipped with error code systems or flashing lights to indicate issues. A malfunctioning float switch can trigger error codes or cause lights to flash, alerting you to a potential problem.
  • Overflow or leaking: One of the most noticeable signs of a faulty float switch is the occurrence of overflow or water leakage. If the switch fails to control the water level properly, it can result in an overflow situation, leading to water spilling out of the dishwasher.

How to Identify If the Float Switch Is Causing the Problem:

To determine whether the float switch is causing the issues you are experiencing with your Kitchenaid dishwasher, you can take the following steps:

  • Inspect the float assembly: Locate the float assembly in your dishwasher, usually located at the bottom of the tub. Check for any visible damage or debris that may be obstructing the float’s movement.
  • Check for proper movement: Manually lift and lower the float to ensure that it moves freely and without any resistance. If you notice any sticking or resistance, it could indicate a problem with the float switch.
  • Test the switch with a multimeter. If you have access to a multimeter, you can test the continuity of the float switch to determine if it is functioning properly. Follow the instructions provided by Kitchenaid or refer to the dishwasher’s user manual for specific testing procedures.
  • Consult a professional. If you are unsure about diagnosing or repairing the float switch yourself, it is always best to consult a professional technician. They will have the expertise and tools necessary to accurately diagnose and resolve the issue.

Troubleshooting Tips for Float Switch Issues:

If you have identified a problem with the float switch in your Kitchenaid dishwasher, here are some troubleshooting tips to help resolve the issue:

  • Clean the float assembly: remove any debris or buildup that may be obstructing the float’s movement. Use a soft brush or cloth to gently clean the float assembly.
  • Check the wiring connections: Ensure that the wiring connections to the float switch are secure and not loose or damaged. Repair or replace any compromised connections as needed.
  • Replace the float switch: If testing or inspection confirms that the float switch is faulty, it will need to be replaced. Follow the manufacturer’s instructions or seek professional assistance for the proper installation of a new float switch.
  • Regular maintenance: To prevent float switch issues and other dishwasher problems in the future, it is essential to perform regular maintenance. This includes cleaning the dishwasher filters, checking for blockages, and using recommended cleaning agents.

By being aware of the signs of a malfunctioning Kitchenaid dishwasher float switch, knowing how to identify the problem, and following troubleshooting tips, you can quickly resolve float switch issues and keep your dishwasher working efficiently.

DIY Troubleshooting And Replacement Guide For Kitchenaid Dishwasher Float Switch

Learn how to troubleshoot and replace the Kitchenaid dishwasher float switch with this easy DIY guide. Find step-by-step instructions and helpful tips to fix the float switch and get your dishwasher running smoothly again.

Are you experiencing issues with your KitchenAid dishwasher float switch? Don’t worry; with a little DIY troubleshooting and replacement, you can have your dishwasher up and running smoothly again. In this guide, we’ll walk you through the step-by-step process to fix your float switch and get your dishwasher back in working order.

Step 1: Safety First: Turn Off The Power Supply

  • Start by ensuring your safety before any repair work. Follow these steps to turn off the power supply to your dishwasher:
  • Locate the power switch or circuit breaker that controls your dishwasher.
  • Switch off the power or flip the circuit breaker to the “off” position.
  • Double-check that the power is truly off before proceeding to the next steps.

Step 2: Removing The Necessary Components

Now that the power is off, let’s start removing the necessary components to access the float switch:

  • Disconnecting the wire:
  • Locate the wires connected to the float switch.
  • Gently disconnect the wire from the float switch, ensuring no damage to any components.
  • Removing the access panel:
  • Look for the access panel at the bottom of your dishwasher.
  • Unscrew or unlatch the access panel to remove it.
  • Detaching the drip tray:
  • Locate the drip tray beneath the access panel.
  • Carefully detach the drip tray from its position.
  • Removing the float switch:
  • The float switch is usually attached to the drip tray.
  • Disconnect any additional wires connected to the float switch.
  • Remove the float switch from its position.

Step 3: Installing The New Float Switch

With the old float switch removed, let’s move on to installing the new one:

  • Connecting the wire:
  • Take the wire from the new float switch.
  • Carefully connect it to the appropriate terminal on the dishwasher.
  • Positioning the new float switch:
  • Align the new float switch with the designated spot on the drip tray.
  • Ensure that it is securely positioned.

Step 4: Reassembling The Dishwasher

Now that the new float switch is in place, it’s time to reassemble the dishwasher.

  • Repositioning the drip tray:
  • Place the drip tray back into its original position beneath the access panel.
  • Realigning the insulation:
  • Make sure the insulation is properly aligned and in place.
  • Putting back the access panel:
  • Align the access panel with its designated spot on the dishwasher.
  • Securing the access panel with screws:
  • Use screws or latches to securely fasten the access panel back into place.

Step 5: Turning On The Power Supply And Testing The Dishwasher

Finally, it’s time to turn on the power supply and test your dishwasher.

  • Turn the power supply back on:
  • Locate the power switch or circuit breaker.
  • Switch on the power or flip the circuit breaker to the “on” position.
  • Test the dishwasher:
  • Run a test cycle on your dishwasher to ensure that the new float switch is working correctly.
  • Monitor the dishwasher’s performance and check for any leaks or malfunctions.

By following these DIY troubleshooting and replacement steps, you’ll be able to resolve issues with your Kitchenaid dishwasher float switch quickly and efficiently. Before starting any repairs, remember to prioritize your safety by turning off the power supply. Now, you can enjoy a properly functioning dishwasher once again!

Where To Find Kitchenaid Dishwasher Float Switch Replacement Parts

Looking for Kitchenaid dishwasher float switch replacement parts? You can find genuine replacement parts on websites like and, with prices starting as low as $10.99. Watch instructional videos on YouTube to learn how to locate and replace the float switch yourself.

Genuine replacement parts:

Finding the right replacement parts for your Kitchenaid dishwasher float switch is crucial for proper functionality. Here are three options that offer genuine replacement parts:

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  • Ensures high-quality replacement parts that are designed to fit perfectly and restore your dishwasher’s functionality.

Option 2: Genuine Replacement Parts; Price: $61.89

  • Specializes in supplying authentic replacement parts for various dishwasher brands, including Kitchenaid.
  • Offers a hassle-free online shopping experience with a comprehensive catalog of genuine replacement parts.
  • Provides reliable customer support for any inquiries or assistance needed in finding the right float switch replacement part.

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  • Ensures compatibility and quality with their extensive selection of authentic replacement parts.
  • Provides a convenient online shopping experience with fast shipping options to get your replacement part quickly., seller: is a trusted online marketplace that offers a wide range of products, including float switch replacement parts for Kitchenaid dishwashers. Here are three options available:

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Finding genuine replacement parts for your Kitchenaid dishwasher float switch is essential to ensure proper functionality. Consider reputable sources such as and Genuine Replacement Parts for authentic replacements. Alternatively, explore options on for a wide range of choices and customer reviews that can assist you in making the right purchase decision.

Frequently Asked Questions:

How Do I Know If My Dishwasher Float Switch Is Bad?

To determine if your dishwasher float switch is bad: 1. Inspect the float by moving it up and down within the dishwasher. It should move easily. 2. Clean the area around the float to ensure smooth movement if it doesn’t move easily.

3. Check if the float is receiving the necessary power to operate. 4. If the float switch is still not working properly, consider replacing it.

Where Is the Float Switch On My Kitchenaid Dishwasher?

The float switch on your KitchenAid dishwasher is located inside the dishwasher, near the bottom.

How Do I Fix the Float on My Dishwasher?

To fix the float on your dishwasher, follow these steps: 1. Turn off the power to the dishwasher. 2. Remove the lower access panel and the bottom rack. 3. Disconnect the wire from the float switch. 4. Install the new float switch and reposition the drip tray and the tray.

5. Realign the insulation and secure the access panel. 6. Turn the power supply back on. Make sure the float moves easily, and clean the surrounding area if necessary. If the float is not operating properly, it may not be receiving power.

Why Would a Dishwasher Float Not Operate Properly?

A dishwasher float may not operate properly if it is stuck or not receiving power.

How Do I Know If My Dishwasher Float Switch Is Bad?

If your dishwasher is not filling with water or overfilling, it may indicate a faulty float switch. Watch this video for a simple test to locate and check the float switch.


When it comes to maintaining the functionality of your Kitchenaid dishwasher, the float switch plays a crucial role. Located within the appliance, the float switch helps to regulate the water level and prevent overflows. If you suspect that your dishwasher’s float switch is malfunctioning, it is important to address the issue promptly.

By replacing the float switch, you can ensure that your Kitchenaid dishwasher continues to operate smoothly and efficiently. With genuine replacement parts readily available online, you can easily find the right float switch for your specific model. Whether you choose to replace the float switch yourself or seek professional assistance, restoring the proper functioning of your dishwasher will help you maintain a clean and efficient kitchen.

Don’t let a faulty float switch disrupt your daily routine; invest in a replacement and enjoy peace of mind knowing your Kitchenaid dishwasher is reliable.

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