LG Dishwasher
LG Dishwasher

Facing an E15 error on a Bosch dishwasher can be a puzzling experience for many homeowners. This code signals that water has leaked into the base pan beneath the appliance, triggering its safety system. Bosch dishwashers are known for their reliability and advanced features, but like any household appliance, they can encounter issues. The E15 error is a common problem that users may face, indicating a specific malfunction within the machine’s system. Understanding what this error means and how to address it is crucial for maintaining the appliance’s performance and ensuring dishes come out sparkling clean every time.

Troubleshooting and Preventing Bosch Dishwasher E15 Errors

Understanding the E15 Error

The E15 error on your Bosch dishwasher signals a leak. This means the dishwasher has detected water in its base. It’s a safety feature to prevent flooding.

Immediate Steps

  1. Turn off the water supply: Locate the valve connected to your dishwasher and shut off the water.
  2. Unplug the dishwasher: This prevents electrical hazards while you troubleshoot.
  3. Soak up the water: Remove any visible water from the base of the dishwasher using towels or a sponge.

Troubleshooting the Leak

  • Check the door seal: Ensure the door gasket is clean and intact. Look for any signs of damage or debris that could prevent a proper seal.
  • Inspect hoses and connections: Examine the inlet and drain hoses for leaks, cracks, or loose clamps. Tighten any loose connections.
  • Check the float switch: The float switch triggers the E15 error when it detects water. Make sure it’s not stuck or obstructed.
  • Clean the filter and sump: A clogged filter or sump can cause water to overflow, leading to the E15 error. Clean them regularly.

Prevention Tips

  • Regular maintenance: Clean your dishwasher regularly, including the filter, sump, and door seal.
  • Avoid overloading: Don’t overfill the dishwasher, as this can lead to leaks and overflows.
  • Load dishes properly: Make sure dishes are positioned correctly to prevent water from pooling or splashing out.
  • Use rinse aid: Rinse aid helps water sheet off dishes, preventing droplets from forming and potentially leaking.

When to Call a Professional

If you’ve tried troubleshooting and the E15 error persists, it’s time to call a professional. A qualified technician can diagnose and fix the issue safely and efficiently.

Table: Common Causes of E15 Error

Damaged door sealReplace the door seal
Leaky hoses or connectionsTighten or replace hoses and connections
Stuck float switchClean or replace the float switch
Clogged filter or sumpClean the filter and sump
OverloadingAvoid overloading the dishwasher
Improper loadingLoad dishes correctly to prevent water spillage

Key Takeaways

  • Understanding the E15 Error: It indicates that water has leaked into the base pan of a Bosch dishwasher, activating the machine’s safety system to shut down and prevent further damage. Identifying the source of the leak is essential for repair.
  • Common Causes: Loose hoses, leaky pumps, and cracks in the dishwasher tub are frequent culprits behind the E15 error. Regular maintenance and checks can help pinpoint these issues for timely repairs.
  • Diagnosing and Resolving: Power off the dishwasher for safety, examine visible components like hoses and pumps for leaks, and inspect the tub and base pan for water collection. Simple DIY fixes include tightening connections, replacing parts, or drying the base pan. For more complex issues, professional assistance might be necessary.
  • Preventing Future E15 Errors: Regular maintenance such as cleaning filters, inspecting door seals, monitoring water hardness, and using the correct detergent can help avoid recurring leaks and the consequent E15 errors, ensuring the dishwasher operates efficiently.

Understanding the E15 Error Code

When Bosch dishwasher owners notice the E15 error code, it signals a specific problem. This code is a warning that water has leaked into the base pan beneath the appliance. Bosch dishwashers have a safety feature designed to prevent water damage to users’ homes. When this feature detects water in the wrong place, it springs into action, shutting down the machine to avoid further issues. The E15 code then appears to alert the owner.

The presence of water in the base pan could stem from several sources. These might include a loose hose, a leaky pump, or even a cracked tub. Over time, wear and tear on the dishwasher can lead to such problems. Identifying the exact cause of the leak is crucial. Only then can a proper fix be applied, ensuring the dishwasher returns to its optimal functioning state.

Addressing the E15 error involves checking several components of the dishwasher. First, the owner should inspect all hoses and connections for signs of leakage. Next, examining the pump and its seals might reveal wear or damage. If these parts are in good condition, the leak may be coming from the tub itself, which could be more challenging to repair.

Once the source of the leak is identified and fixed, resetting the dishwasher is necessary to clear the E15 error code. This might involve tilting the machine to remove excess water from the base pan or following specific reset instructions from Bosch. Getting the dishwasher back to work without the E15 error means the safety system no longer detects unwanted water. This fix restores the peace of mind that comes with knowing the appliance is functioning safely and efficiently.

Causes of the E15 Error

When a Bosch dishwasher flashes the E15 error, it’s signaling a specific problem. This error means water has gotten into the base pan beneath the dishwasher. Several issues can lead to this situation. We’ll break them down for simple understanding.

First, Loose Hoses can be a culprit. Over time, the hoses that connect the dishwasher to the water supply can become loose. This loosening allows water to escape and collect in places it shouldn’t be, like the base pan. Regular checks can prevent such issues from occurring.

Another common cause is a Leaky Pump. Dishwashers rely on pumps to circulate water throughout the unit. If there’s a crack or hole, water may drip out slowly, accumulating in the base pan over time. Spotting leaks early is key to avoiding the E15 error.

Finally, the dishwasher tub itself can develop cracks or damage, leading to leaks. A cracked Tub is a more serious issue. It usually requires professional help to fix. Such damage often happens with age or after moving the dishwasher improperly.

Identifying what’s behind the E15 error is crucial. Once the source of the leak is found, it can usually be fixed. Tightening hoses, replacing the pump, or repairing the tub are common solutions. Remember, water in the base pan is a sign the dishwasher is trying to protect itself from water damage. Addressing the root cause of the leak helps ensure your dishwasher runs smoothly again.

How to Diagnose the Issue

Diagnosing the E15 error on a Bosch dishwasher involves a few straightforward steps. This error means the dishwasher thinks there’s a leak. It’s telling you it’s time for a check-up. Here’s what to do.

First, turn off the power. Safety comes first. Either unplug the dishwasher or flip the breaker in your electrical panel. This prevents any chance of an electric shock.

Next, check for visible leaks. Pull the dishwasher away from the wall. You’re looking for any signs of water on the floor. Shine a flashlight to catch any hidden drips. Sometimes, the problem is as simple as a loose hose.

Inspect the hoses and pumps. These parts can wear out or get loose. If you spot any water or damage, that could be your culprit. A hose might just need tightening. A pump might need replacing.

Look at the dishwasher tub. Cracks here are bad news. They can let water escape during cycles. If you find a crack, that’s a significant issue.

Check the base pan. This is a bit trickier but important. Bosch dishwashers have a safety feature. If water collects in the base pan, the machine stops and shows E15. You might need to remove a panel to see the pan. If there’s water, you’ve found the problem.

This process doesn’t require special tools or skills. Just patience and a bit of detective work. Finding the source of the leak is the first step to fixing your dishwasher.

Resolving the E15 Error

Fixing the E15 error on a Bosch dishwasher means dealing with the leak that’s causing the machine to shut down. First, Turn Off the Power to ensure safety before starting any repair work. It’s essential not to skip this step to avoid electric shock.

Locate the Leak starts with pulling the dishwasher away from the wall if possible. This action enables a clear view of the hoses and the base pan. Next, look for any signs of water or damp spots. These are clues pointing to where the problem might lie.

Check Hoses and Seals for any wear and tear. Over time, hoses can weaken, and seals might break down, leading to leaks. Replacing these parts is often straightforward and can be done with just a few tools.

The Water Inlet Valve is another critical area to inspect. If it’s not working correctly, it could be letting in too much water, leading to overflow and, eventually, an E15 error. Testing this requires a multimeter, but it’s a relatively simple procedure for those familiar with DIY repairs.

Dry the Base Pan. If water has collected here, drying it thoroughly can sometimes reset the dishwasher and clear the E15 error. However, this is a temporary fix. It’s vital to address the root cause of the leak to prevent the error from occurring again.

Consider Professional Help. If the above steps don’t resolve the issue, it might be time to call in a professional. They have the expertise and tools to diagnose and fix leaks quickly, ensuring the dishwasher works correctly without further problems.

Addressing the E15 error involves detective work and sometimes, a bit of handyman skills. By following these steps, most users can identify and fix the issue, getting their Bosch dishwasher back in operation.

Preventing Future Occurrences

After fixing an E15 error on a Bosch dishwasher, taking steps to prevent it from happening again is wise. Regular maintenance can keep the machine running smoothly and avoid future issues.

First, check and clean the filters at least once a month. Food particles and debris can clog these filters, leading to water not draining properly. This buildup can cause water to leak into the base pan, triggering the E15 error.

Second, inspect the door seal for any signs of wear or damage. If the seal is not tight, water can escape during a wash cycle and collect in the base pan. Replacing a worn seal is a simple task that can prevent leaks.

Third, keep an eye on the dishwasher’s hoses and connections. Over time, hoses can become loose or damaged, resulting in leaks. Tightening connections and replacing damaged hoses can help avoid future E15 errors.

Monitoring water hardness is also crucial. Hard water can lead to scale buildup, affecting the dishwasher’s performance. Using a water softener or descaling agent can help maintain optimal operation.

Lastly, use the correct type and amount of detergent. Too much detergent or the wrong kind can create excess foam, which may lead to water spilling into the base pan. Consult the dishwasher’s manual for the manufacturer’s recommendations on detergent use.

By following these tips, you can reduce the risk of encountering the E15 error again. Regular checks and maintenance are key to ensuring your Bosch dishwasher remains in top condition.


Adopting regular maintenance routines for your Bosch dishwasher is key to preventing the dreaded E15 error. By ensuring filters are clean, the door seal is intact, and hoses are securely connected, you’re taking proactive steps to maintain your appliance’s health. Remember, monitoring water hardness and using the appropriate detergent not only contribute to the longevity of your dishwasher but also to the efficiency of each wash cycle. With these practices in place, you can enjoy the seamless operation of your Bosch dishwasher, free from the hassle of unexpected errors.

Frequently Asked Questions

How can I prevent the E15 error on my Bosch dishwasher?

Regular maintenance is key to preventing the E15 error. Clean the filters, inspect the door seal for integrity, ensure hoses and connections are secure, monitor the water hardness, and use the correct type and amount of detergent. These steps help maintain your dishwasher’s optimal operation and prevent leaks that can lead to the E15 error.

What is the E15 error on Bosch dishwashers?

The E15 error indicates a leak has been detected by the dishwasher’s system, triggering a safety shut-off. This error is often associated with water collecting in the base of the dishwasher due to leaks or blockages.

How often should I clean the filters in my Bosch dishwasher?

For optimal performance, clean your Bosch dishwasher’s filters after every few cycles, or at least once a month. Regular cleaning prevents food particles and debris from clogging the system, which can cause the E15 error.

Can water hardness affect my Bosch dishwasher?

Yes, water hardness can significantly impact your dishwasher. Hard water can leave deposits that clog hoses and damage the appliance. Use water softening agents as needed and adjust your dishwasher’s settings according to the hardness of your water to prevent issues.

What type of detergent is best for my Bosch dishwasher?

Use a high-quality dishwasher detergent designed for use in your specific model. Avoid using too much detergent, as it can create excess suds and lead to leaks. Consult your dishwasher’s manual to determine the best type and amount of detergent to use.

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