How to Fix Bosch Dishwasher Error Code E15

Do you have a Bosch dishwasher? You may have it and now you find error code E15 in your dishwasher. If so, you have to fix it. Here, I have some information about the reasons for this error and also the methods for fixing it according to the How To Fix It site.

If the error code E15 happens in your Bosch dishwasher, as explained on Ho To Fix It site, it means that water has collected at the bottom of the machine. Specifically, water has accumulated in the trough and triggered the safety switch. So, it causes the machine to stop working and the error code E15 appears.

This error is part of the leakage protection system of the dishwasher. It makes you not able to use the dishwasher when water is present in a place where it should not be. To fix this error, you need to reset your dishwasher’s E15 error code. After you reset it, then you need to troubleshoot the cause so that you are able to resolve it.

How to Fix Bosch Dishwasher Error Code E15

Resetting The Bosch Dishwasher E15 Error Code

According to the How To Fix It site, the safety switch that can make the E15 error code appears because of the presence of water. There are two methods for resetting the error code. First, you can reset it by using the tilt method and the second, you can do that by resetting the safety switch manually.

Resetting E15 Error Code by Using the Tilt Method

You can pull the dishwasher out from under the sink or your kitchen cabinet. After that, you have to tilt the machine back at a 45 degree angle carefully. By doing this, it permits the water to flow away from the safety switch and return it back to its default status. It should reset the error code and you are able to continue using the machine.

Resetting E15 Error Code by Resetting the Safety Switch Manually

You are able to access the bottom of the dishwasher and free the safety switch yourself. You will find that the safety mechanism has a switch and a polystyrene disc in the trough. Water in the trough will cause that polystyrene disc to float and depress the safety switch.

To reset it manually, you will have to remove any water in the trough. To remove all the water, you are able to use a cloth or any other tool. If you see that the polystyrene disc is stuck, you have to free it with your hand and return it to the bottom of the trough where it should be. So, it will reset the E15 error code and you are able to continue to use the dishwasher again.

The Causes of The Bosch Dishwasher E15 Error Code Happens

If you reset the error code as explained earlier will permit the dishwasher to work properly again. However, it is important for you to note that if you do not address the root cause, the error code may appear again.

Water in your dishwasher trough can be caused by some factors such as the usage of excess soap, a leak in the water tank or hoses, a sump basin leak and broken fixtures in the dishwasher. Let’s read the explanation of some of each factor here.

    • Excess Dishwashing Soap or Detergent

You need water and soap to perform a washing cycle in your Bosch dishwasher. However, it is important for you to know that they must be in the correct amounts. Water supply is automated so that the dishwasher will decide how much water is needed for that washing cycle. The volume of water will be controlled using the water inlet valve. But, the soap is added manually. So, you have to refer to the instructions on the bottle of the dishwasher soap. If you add soap too much, error will cause the washing cycle to generate more suds than the machine can handle. So, the suds and water will flow to parts of the machines where they should not go. In some cases, it can force water to drip into the trough at the bottom of the dishwasher and trigger the safety switch and cause the E15 error to appear. If so, after you reset the error code, you have to run an empty dishwashing cycle to wash out any excess suds or detergent buildup. It will be more effective if you choose the hottest water setting possible. Then, you can refer to the dishwashing soap packaging. There, you can see the recommended amount of soap or detergent that you have to add to the washing cycle.

    • Sump Basin Leak

The sump basin is located at the lowest part inside your dishwasher. That is wherethe dirty water flows into before it is drained out of the main compartment of the dishwasher. If error code E15 happens, it means that there is water in the trough at the bottom of the dishwasher. Usually, it happens because there is a leak permitting water to go there. The sump basin is above the trough where the safety switch and polystyrene disc sit. When the sump basin leaks, the water will flow directly to that trough so that it causes the disc to float and trigger the safety switch. The reason why it can happen is because the sump seal at the bottom of the basin may have begun becoming loose, corroded or worn out. So, it fails to create a tight seal and permits water to escape and drip into the trough below. To fix it, from the inside of the dishwater, you can try and tighten the screws holding the sump basin in place. If the seal is simply loose, it may solve the problem. However, if the leak happens again and again, you have to remove the sump basin and replace the sump seal with the new one.

    • Leaking Water Tank or Hoses

Dishwasher from Bosch has water tanks and some hoses inside. Some hoses work to supply and circulate clean or filtered water around the inside for washing the items inside. Hoses also work to help drain the dirty water and take it out of the machines. On the other hand, the water tank is found on the side of the machine under an access panel. The purpose is to save enough water to run a complete dishwashing cycle. Water tanks and hoses are able to start to leak. It could be that they were not installed properly in the first place or that their joints were not sealed properly. Or, their connections may have come loose and it permits water to leak out. To fix it, you can do the things below.

      • The access panels on all sides of the dishwasher need be removed and inspecting the water tank and each hose upfront must be done as well.
      • Usually, it is easy to find the most minor leak if you touch the whole length of the tank and hoses. So, you can feel the water on your fingertips and identify a leak even though you are not able to do that visually.
      • After you have identified the part which is leaking, then you have to replace it.

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