Bosch Dishwasher Error Code E15: How to Fix it


A Bosch dishwasher is a reliable cooking appliance that gets your dishes clean quickly and easily. But, like any other device, it can sometimes have problems. One of these problems is the Bosch dishwasher error code E15, which can be worrying. In this piece, we’ll talk in depth about the E15 error, its possible causes, and step-by-step ways to fix it.

Understanding the Bosch Dishwasher Error Code E15

When your Bosch dishwasher shows the trouble code E15, it means that there is a leak. The machine’s AquaStop feature looks for water in the base and sends a mistake message as a safety measure. This feature stops water from getting into your kitchen and causing damage to your home.

Bosch Dishwasher Error Code E15

Reasons Behind the E15 Error

Several issues can lead to the E15 error on your Bosch dishwasher:

Water Leakage

The most common cause of the E15 error is water leakage from the dishwasher. This could be due to a damaged hose, loose connections, or a cracked tub.

Float Switch Malfunction

The dishwasher’s float switch is responsible for detecting water levels in the base. If it malfunctions or gets stuck, the dishwasher may interpret it as water leakage, triggering the E15 error.

Faulty Door Latch

A faulty door latch may not create a proper seal, leading to water seepage during the wash cycle. The dishwasher interprets this as a leakage and displays the E15 error.

Water Inlet Valve Issue

If the water inlet valve fails to close properly after filling the dishwasher, it may cause water to overflow and trigger the E15 error.

How to Fix  E15 Error in Bosch Dishwasher?

To address the E15 error on your Bosch dishwasher, follow these troubleshooting steps:

Checking for Water Leakage

Inspect the area around and underneath the dishwasher for any signs of water leakage. If you find any, identify the source and address the issue accordingly.

Inspecting the Float Switch

Check the dishwasher’s float switch for any obstructions or signs of damage. Gently move the float up and down to ensure it moves freely and is not stuck.

Testing the Door Latch

Ensure that the dishwasher door closes securely and the latch functions correctly. Clean the door gasket to remove any debris that may hinder a proper seal.

Verifying the Water Inlet Valve

Inspect the water inlet valve for any defects or clogs. Make sure it opens and closes smoothly during the wash cycle.

Steps to Reset the Bosch Dishwasher

If you have addressed the underlying issue causing the E15 error, you can attempt to reset the dishwasher. Turn off the dishwasher and unplug it from the power source for a few minutes. Then, plug it back in and restart the dishwasher. This should clear the error code.

Preventive Measures to Avoid E15 Error

To avoid encountering the E15 error in the future, consider these preventive measures:

Regular Maintenance

Perform regular maintenance, including checking for leaks, cleaning the dishwasher’s interior, and inspecting hoses for wear and tear.

Proper Loading of Dishes

Load the dishes properly, ensuring they do not obstruct the dishwasher’s spray arms or interfere with the door seal.

Using the Right Detergents

Use only detergents recommended for your Bosch dishwasher, as using the wrong ones can create excessive suds and potential leakage.

Ensuring Proper Door Closure

Always ensure the dishwasher door is properly closed and latched before starting any wash cycle.

When to Seek Professional Assistance

If you have tried the troubleshooting steps and the E15 error persists, it may indicate a more complex issue that requires professional attention. In such cases, contacting a certified technician can help diagnose and resolve the problem effectively.


The Bosch dishwasher error code E15 can be a worrisome sight, but it serves as an important safety feature to protect your home from water damage. By understanding the possible reasons behind the error and following the troubleshooting steps, you can resolve the issue and keep your dishwasher running smoothly. Remember to perform regular maintenance and take preventive measures to avoid encountering the E15 error in the future.


Q: Is the E15 error dangerous for my kitchen?

A: The E15 error is not dangerous, but it indicates a water leakage problem that should be addressed promptly to prevent damage.

Q: Can I fix the E15 error myself?

A: You can attempt basic troubleshooting, but if the error persists, it’s best to seek professional help.

Q: How can I prevent water leakage in my Bosch dishwasher?

A: Regularly inspect and maintain the dishwasher, ensuring all connections are secure and there are no signs of wear.

Q: Can a faulty door latch cause the E15 error?

A: Yes, a faulty door latch can lead to improper sealing and trigger the E15 error.

Q: Is the AquaStop feature reliable?

A: Yes, the AquaStop feature is designed to detect leaks and prevent water damage effectively.

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