How to fix the E15 error in a Bosch dishwasher

You may be experiencing some anxiety if your Bosch dishwasher is flashing the E15 error code. This code typically denotes an issue with your dishwasher’s water system; although it may seem serious, this is a common problem with a few simple solutions. Fear not—the majority of these fixes are easy enough for you to do on your own without contacting a repair expert.

The E15 error usually indicates that your dishwasher’s base has an excess of water or a leak. There are several potential causes of this, including a clogged filter or a malfunctioning drain pump. The good news is that a little troubleshooting can usually solve these issues. We’ll walk you through the process in this guide to find the problem and solve it so you can use your dishwasher again.

You can fix the error and resume enjoying clean dishes without any hassle by following a few easy steps. Let’s examine the common causes of the E15 error and the effective solutions for each. You can quickly have a fully functional dishwasher with a little perseverance and helpful advice.

The E15 error code on your Bosch dishwasher usually indicates a problem with water drainage, which is frequently brought on by a clogged or leaky drain system. This post will guide you through a few easy steps to troubleshoot and resolve the E15 error, such as looking for leaks, making sure the drainage pump is operating properly, and inspecting the filter and drain hose for obstructions. You won’t need to hire a repair professional to get your dishwasher operating properly again if you follow these simple instructions.

Decoding the E15 error code

Dishwashers nowadays are capable of self-diagnosing. The dishwasher shows a specific error code on the display in the event of a breakdown. With the help of this solution, experts can address flaws more quickly and avoid wasting time on diagnostics.

This is how the Bosch dishwasher display displays the E15 information code.

Thus, when the tap is running and the Bosch dishwasher displays an E15 error, the "Aquastop" safety feature has been activated. The dishwasher breaks down in this instance. What does this system consist of? It notifies that the dishwasher tray has a water leak.

For readers’ convenience, we have included an Aquastop system diagram.

Aquastop is an easy-to-use and efficient tool. There is a float in the lower portion of the PMM’s sloped bottom. The float rises as soon as water enters the pallet. As he rises, he applies pressure to the sensor, works, and sends information about the issue to the control unit (subsequently also known as the ECU).

The protective valve in the intake hose receives a command from the ECU to shut off the water supply (see scheme). Concurrently, the drain pump (henceforth referred to as additionally – pump) for the purpose of extracting liquid from the dishwasher. This safeguard is so strong that it eliminates the chance of the house flooding.

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PMM without a display are identified by the burning or blinking of an indicator in the shape of a crane.

Possible reasons and their elimination

There are various reasons why a Bosch dishwasher may encounter error E15. This might be:

• a malfunction in the dishwasher control unit;
• a “sticking” float of the protective system;
• a malfunction of the sensor signaling a leak;
• a clogged filter, drain hose or branch pipe, pump;
• a violation of the sealing of one of the branches in the dishwasher body;
• a malfunction of the spray arm washing the dishes.

If the dishwasher leaks, this is what occurs in the kitchen.

Apart from the previously mentioned issues, there could be an additional one: using more detergent than is advised. This causes an excessive amount of foaming, which in turn triggers the Aquastop protection. Let’s look at how you can fix the dishwasher yourself to get rid of malfunctions.

Resetting the dishwasher settings

The first thing you should do is reset the settings. It’s highly likely that the dishwasher will work again after being restarted.

You must take several easy steps in order to accomplish this:

• disconnect the unit from the 220 V network by removing the power cord from the socket;
• wait at least 15-20 minutes;
• turn the dishwasher back on.

Make sure you take the power cord out of the socket in order to reset the settings.

Check the reset algorithm in the dishwasher’s instructions if the E15 error reappears after turning it on once more. The truth is that reset algorithms vary amongst Bosch models.

For some devices, for instance, you must perform the following tasks:

1. Open the dishwasher door.
2. Press the power button, as well as the program buttons 1 and 3. All three buttons must be held down for at least 3-4 seconds.
3. Close the door, then open it again.
4. Press the Reset button and hold it for at least 3-4 seconds.
5. Close the door again. Wait until the end of the program signal sounds.
6. Open the door and turn off the dishwasher, disconnect the cord from the socket.

According to the manufacturer, this totally clears the ECU memory, which may have a beneficial effect. A useful universal option to try is holding down the power button for approximately 30 seconds.

Removing a stuck float

It is very easy to carry out this operation. In order to avoid damaging the inlet and outlet hoses, you must carefully remove any built-in units from the furniture opening after disconnecting them from the network.

The Bosch dishwasher’s foam float and Aquastop system sensor

Try to cause the body to vibrate by swinging and moving the device. Tilt it no more than thirty degrees. Once you have completed your swing, tilt your body to the side at a minimum 45° angle to allow the water to start flowing out of the tray. After giving it a thorough drain, let the machine air dry for a day. This approach works quite well most of the time.

Removing a blockage in the drainage system

The most frequent error committed by users is failing to promptly clean the filter of food particles, napkins, and other foreign objects. You must take out the lower dish basket from the chamber in order to clean it. Adjacent to the spray arm on the bottom is where you’ll find the filter.

Dishwasher filter made by Bosch

In most cases, removing the filter just requires turning the glass 90 degrees, but there are some older dishwasher models that require a different method. It’s also necessary to take out the mesh that surrounds the filter. Rinse it thoroughly, along with the filter element, with any kind of detergent to get rid of fat.

If cleaning the filter doesn’t produce the desired results, look for obstructions in the sewer and drain hose. You will need to disassemble the machine in order to remove the hose.

Take these several easy steps:

1. Organize the workspace so that there is free access to the dishwasher body from all sides.
2. Disconnect the dishwasher from the mains and remove the filter element again.
3. Unscrew and remove the side covers of the body.
4. Remove the front panel. To do this, you will have to use a Torx screwdriver (asterisk). The panel is held in place by bolts located on the left and right sides of the case.
5. After removing the panel, you will see a metal strip. Unscrew the screws that secure it and remove the strip.
6. Go to the back wall of the case and unscrew the bolts that you will see in it.
7. Remove the rubber bands that secure the pump to the bottom of the case.
8. Remove the plastic plugs located on the sides of the dishwasher.
9. Now disconnect the door holder from the case.
10. Find the rope and remove it from the spring.
11. Carefully remove the lower part of the dishwasher case.

Dishwasher’s internal components, including the drain hose and pump

Now you can pull the hose out and loosen or remove the clamp to disconnect it from the pump. Rinse the hose under a powerful stream of water and inspect it for integrity. You can inspect the pipes that are now accessible inside the case at the same time. The dishwasher should be assembled in the opposite order from how the hose is installed on the seat.

Faulty Aquastop system sensor and sprayer

These are the E15 error’s least likely causes. By taking the case apart, one can gain access to the sensor. It is housed in the glass alongside the float that is part of the Aquastop system. It is advisable to have the sensor replaced if there are any malfunctions.

The dishwasher chamber’s spray arms

The chamber’s top and bottom are home to spray arms. Using a screwdriver, unlock the locks on each sprayer and take them out one at a time. Get new parts and install them.

Finally, I would like to point out that the majority of issues that occur when using a dishwasher can be resolved by the owner alone. Desire is all that is required. However, consult a specialist if you are afraid that you will make a mistake.

Step	Action
1	Turn off the dishwasher and unplug it to ensure safety.
2	Check the bottom of the dishwasher for water pooling. If there"s water, it may indicate a drainage issue.
3	Inspect the drain filter and remove any debris. Clean it thoroughly under running water.
4	Examine the drain hose for kinks or blockages. Ensure it"s properly connected and clear.
5	Reassemble everything, plug the dishwasher back in, and run a short cycle to test if the error is resolved.
6	If the E15 error persists, you might need to call a professional technician to check for internal leaks or issues with the float switch.

Although troubleshooting the E15 error in your Bosch dishwasher can be annoying, you can usually resolve it on your own. You can fix common problems like leaks or blockages that cause this error by following the steps listed. To protect your safety, always remember to unplug your dishwasher and turn off the water supply before beginning any repairs.

Look for any obvious leaks or standing water near the dishwasher’s base. This might indicate that the hose is loose or damaged. It’s also critical to clear any debris from the drainage area and filters because obstructions here can cause error codes and impede normal water flow.

After performing these checks and the error still occurs, it could be a good idea to look up more troubleshooting advice in the user manual or to get in touch with a qualified technician. Maintaining your dishwasher on a regular basis can help avoid future problems, so monitor its operation and take care of any minor issues before they get worse.

To sum up, checking for leaks, cleaning filters, and making sure all parts are connected correctly are the steps involved in resolving the E15 error. It’s usually possible to fix the problem and get your dishwasher operating normally again with a little perseverance and basic troubleshooting knowledge.

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