Bosch Dishwasher Getting E15 Error Code – Causes & Fixes

Bosch dishwashers are known for their high quality and efficiency. However, like any appliance, they may sometimes experience issues. One common problem with Bosch dishwashers is the E15 error code.

The E15 error code indicates that your dishwasher has detected a water leak or a problem with the water level. Some common causes of this error code include:

• Water leak
• Float switch malfunction
• Faulty drain pump

In this article, we will provide you with a detailed outline to help you understand the E15 error code, its causes, and the possible fixes.

Understanding the E15 Error Code

In this section, we will dive deeper into what the E15 error code means and how it affects your Bosch dishwasher.

Definition and symptoms of the E15 error code

The E15 error code is a signal that your dishwasher has detected a water leak or a problem with the water level. When this code appears, you may notice water pooling under the dishwasher or the dishwasher stopping in the middle of a cycle.

Impact on dishwasher performance

When the E15 error code occurs, your dishwasher’s performance may be affected in various ways. The dishwasher may not clean your dishes properly, or it could even stop working altogether. Additionally, if the leak is not fixed, it can lead to damage to your kitchen floors or cabinets.

Safety concerns related to E15

Aside from affecting your dishwasher’s performance, the E15 error code also raises some safety concerns. A water leak can create a slippery floor, increasing the risk of slips and falls. Furthermore, if the leak reaches electrical components within the dishwasher, it can cause a short circuit and potentially lead to a fire hazard.

Common Causes of the E15 Error Code

In this section, we’ll explore the common causes behind the E15 error code in your Bosch dishwasher. By identifying these causes, you’ll be better equipped to fix the issue and prevent it from happening again.

1. Water leakage

Water leaks are one of the primary causes of the E15 error code. Here are some possible sources of leaks in your dishwasher:

• Door seal—The door seal is a rubber gasket that prevents water from leaking out of the dishwasher. If it is damaged or worn out, water can escape, causing the E15 error code.
• Pump seal—The pump seal is another rubber part that prevents water from leaking out of the dishwasher’s pump. A damaged or worn-out pump seal can also lead to water leakage and the E15 error code.
• Hose connections—Hoses connect different parts of the dishwasher, such as the pump and the water supply. If these connections become loose or if the hoses are damaged, water can leak and trigger the E15 error code.

2. Float switch malfunction

The float switch is a safety device that monitors the water level inside the dishwasher. If the water level gets too high, the float switch sends a signal to stop the dishwasher from filling with more water. If the float switch malfunctions or gets stuck, it may falsely detect a high water level and cause the E15 error code. There are two main issues that can affect the float switch:

• Float switch assembly—The float switch assembly includes the float and the switch itself. If any part of this assembly is damaged or not functioning correctly, it can cause the E15 error code.
• Float movement obstruction—Sometimes, debris or other objects can obstruct the float’s movement, causing it to falsely detect a high water level. This can also lead to the E15 error code.

3. Faulty drain pump

The drain pump is responsible for removing water from the dishwasher after the cleaning cycle. If the drain pump is not working correctly, it can cause water to accumulate inside the dishwasher, leading to the E15 error code. Two common issues with the drain pump include:

• Pump impeller issues—The impeller is a spinning part inside the pump that helps move water out of the dishwasher. If it is damaged or blocked, the pump may not work properly.
• Electrical connection problems—If the electrical connections to the drain pump are loose or damaged, the pump may not function correctly, causing the E15 error code.

Step-by-Step Fixes for the E15 Error Code

Now that we know the common causes behind the E15 error code, let’s learn how to fix them. In this section, we will walk you through step-by-step solutions to help you get your Bosch dishwasher running smoothly again.

1. Fixing water leaks

Replacing the door seal

1. Unplug the dishwasher and open the door.
2. Carefully remove the old door seal by pulling it out of its groove.
3. Clean the groove with a cloth or sponge to remove any debris.
4. Install the new door seal by pressing it firmly into the groove, ensuring it fits snugly.
5. Close the door and plug in the dishwasher to test if the leak is fixed.

Repairing the pump seal

1. Disconnect the hoses and electrical connections from the pump.
2. Remove the pump from the dishwasher by unscrewing it.
3. Replace the damaged pump seal with a new one.
4. Reinstall the pump, reconnect the hoses and electrical connections, and replace the bottom panel.
5. Plug in the dishwasher and run a cycle to check if the leak is fixed.

Securing hose connections

1. Unplug the dishwasher and locate the hoses connected to the pump and water supply.
2. Check for any loose or damaged hoses and tighten or replace them as needed.
3. Ensure all hose connections are secure and free of leaks.
4. Plug in the dishwasher and run a cycle to confirm the leak is fixed.

2. Resolving float switch issues

Cleaning the float switch assembly

1. Unplug the dishwasher and remove the bottom panel to access the float switch assembly.
2. Carefully remove the float and the switch from the dishwasher.
3. Clean the float, switch, and surrounding area to remove any debris or buildup.
4. Reinstall the float and switch, ensuring they move freely.
5. Replace the bottom panel and plug in the dishwasher to test if the E15 error code is resolved.

Removing obstructions

1. Unplug the dishwasher and remove the bottom rack to access the float.
2. Check for any debris or objects that might be obstructing the float’s movement and remove them.
3. Ensure the float can move freely without any obstructions.
4. Replace the bottom rack and plug in the dishwasher to test if the E15 error code is resolved.

3. Addressing drain pump problems

Cleaning the pump impeller

1. Unplug the dishwasher and remove the bottom panel to access the drain pump.
2. Disconnect the hoses and electrical connections from the pump.
3. Remove the pump from the dishwasher by unscrewing it.
4. Open the pump and clean the impeller to remove any debris or blockages.
5. Reassemble the pump, reinstall it, reconnect the hoses and electrical connections, and replace the bottom panel.
6. Plug in the dishwasher and run a cycle to check if the E15 error code is resolved.

Checking electrical connections

1. Unplug the dishwasher and remove the bottom panel to access the drain pump’s electrical connections.
2. Inspect the connections for any signs of damage or loose wires.
3. Repair or replace any damaged connections and ensure all wires are securely connected.
4. Replace the bottom panel and plug in the dishwasher to test if the E15 error code is resolved.

When to Call a Professional

While it’s possible to fix the E15 error code on your own, some situations may require the help of a professional. If you’re not comfortable with repairing the dishwasher, or if you don’t have the necessary tools or expertise, it’s best to call a professional.