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How To Fix The Error Code FB For Whirlpool Dishwasher How To Fix The Error Code FB For Whirlpool Dishwasher


How To Fix The Error Code FB For Whirlpool Dishwasher

Written by: Grace Wilson

ARTICLES: Learn how to fix the FB error code on your Whirlpool dishwasher with our step-by-step guide. Get your dishwasher running smoothly again with these easy troubleshooting tips.

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Is your Whirlpool dishwasher displaying the dreaded error code FB? Don’t panic! We’re here to help you fix the motorized diverter valve fault with ease.

One of the most frustrating issues you can encounter with your dishwasher is a malfunctioning motorized diverter valve. This valve is responsible for directing water to either the top or bottom spray arm, ensuring a thorough and efficient cleaning cycle. When it fails to function properly, the error code FB appears on the display panel, indicating that there’s a problem.

But fear not, as we are here to guide you through the troubleshooting process and provide you with step-by-step instructions on how to fix this error. Let’s get started!

Key Takeaways:

  • Don’t let the error code FB on your Whirlpool dishwasher stress you out. Follow our step-by-step guide to troubleshoot and fix the motorized diverter valve fault with ease.
  • When dealing with the error code FB, safety comes first. Check for obstructions, test the valve motor, inspect the wiring, and reset the control board. If all else fails, seek professional assistance for a thorough diagnosis and repair.

How to Fix the Error Code FB: Motorized Diverter Valve Fault

Before attempting any repairs, make sure to disconnect the power supply to your dishwasher for safety. Now, let’s delve into the troubleshooting steps:

  1. Check for Obstructions: Start by inspecting the motorized diverter valve for any debris or obstructions that may be impeding its movement. Clear away any blockages carefully using a soft cloth or a toothbrush.
  2. Test the Valve Motor: Next, you’ll need to test the motorized diverter valve. Use a multimeter to measure the resistance of the motor’s coil. If the reading differs significantly from the manufacturer’s specifications, it’s likely that the valve motor needs to be replaced.
  3. Inspect the Wiring: Examine the wiring connections leading to and from the motorized diverter valve. Check for any loose, damaged, or corroded wires. Secure any loose connections and replace any damaged wiring as necessary.
  4. Reset the Control Board: To reset the control board and clear the error code FB, simply turn off the dishwasher at the main power switch or unplug it for a few minutes. Then, power it back on, and the error code should be gone. However, if the error code persists, further troubleshooting is required.
  5. Contact a Professional: If you’ve followed all the steps above and the error code FB persists, it’s best to reach out to a professional appliance repair technician. They will have the specialized knowledge and tools required to diagnose and resolve the issue.

Remember, safety should always be your top priority when dealing with electrical appliances. If you’re unsure or uncomfortable with performing any of these troubleshooting steps, it’s best to seek professional assistance.

To fix the error code FB on a Whirlpool dishwasher, try resetting the dishwasher by unplugging it for a few minutes and then plugging it back in. If the error persists, it may indicate a problem with the control board or the wiring, and professional service may be required.


The motorized diverter valve fault, indicated by the error code FB on your Whirlpool dishwasher, can be a real headache. However, with a little patience and the right guidance, you can successfully troubleshoot and resolve the issue.

In this article, we’ve outlined the necessary steps to fix the error code FB, including checking for obstructions, testing the valve motor, inspecting the wiring, and resetting the control board. Remember, if all else fails, it’s always advisable to consult a professional to ensure a proper diagnosis and repair.

Now that you’re armed with the knowledge to tackle this problem, go ahead and get your dishwasher back up and running smoothly!

Frequently Asked Questions about How To Fix The Error Code FB For Whirlpool Dishwasher

How do I determine if my Whirlpool dishwasher has an error code FB?

To determine if your Whirlpool dishwasher has an error code FB, you can check the display panel or control panel on the front of the dishwasher. If you see the letters “FB” displayed or an error code with similar characteristics, then your dishwasher is experiencing this specific error.
What does the error code FB mean on my Whirlpool dishwasher?

The error code FB on a Whirlpool dishwasher indicates a communication problem between the main control board and the motor control board. This issue can prevent the dishwasher from properly functioning and may require attention to resolve the error.
How can I reset the error code FB on my Whirlpool dishwasher?

To reset the error code FB on your Whirlpool dishwasher, you can try a simple power cycle. First, turn off the dishwasher by pressing the power button or by unplugging it from the power source. Wait for a few minutes before restoring power to the dishwasher. Once power is restored, the error code should be cleared. If the error persists, further troubleshooting or professional assistance may be needed.
Can I fix the error code FB on my Whirlpool dishwasher by myself?

While some error codes on appliances can be fixed by homeowners, resolving the error code FB on a Whirlpool dishwasher may require technical expertise. It involves troubleshooting the communication between control boards, which can be complex. It is recommended to consult the dishwasher’s user manual for troubleshooting tips or contact a professional service technician for assistance.
Should I contact Whirlpool customer support for help with the error code FB?

If you are unable to resolve the error code FB on your Whirlpool dishwasher using the suggested troubleshooting methods, it is advisable to reach out to Whirlpool customer support for further assistance. They can provide specific troubleshooting steps or recommend a service technician who can help diagnose and fix the error.

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