Bosch Dishwasher E15 Error Code [SOLVED] – Let’s Fix It

Bosch dishwashers are some of the most reliable machines on the market. Bosch dishwasher error codes can be frustrating, but it’s a good idea to know what they mean so you can fix them.

Bosch Dishwasher Error Code E15 indicates that water is sitting in the base of your machine, which will cause it to keep pumping out water and eventually shut off. If this sounds like your Bosch dishwasher, read on for how to fix it.

What Does The Bosch Dishwasher E15 Error Code Mean?

Bosch Dishwasher E15 Error Code

A Bosch dishwasher won’t turn on if there’s water in the base. If an E15 error code appears, the anti-flooding feature prevents excess water from flooding your kitchen floor. To fix it, clean any water out of the lower base, check the hoses and make sure they aren’t clogged and there is no leakage, then reset the machine to start a new cycle.

When you select a program in your Bosch dishwasher, the machine will fill the water trough and run the cycle. However, if water collects in the trough during use, You will get the Bosch dishwasher E15 Error. A safety switch in the machine will be activated. The safety switch is designed to turn off this machine at the first sign of an issue — that way, you never have to worry about potential damage from running, leaking, or malfunctioning appliances.

If you see the E15 error code, it might be because your dishwasher is leaking. This code tells you that your dishwasher’s Water Leakage Protection System is active — which means your machine is trying to prevent a flood in your kitchen. If the leak isn’t fixed, those floods will likely happen anyway, as you’ll probably need to remove all of your dishes and clean up the mess.

To fix the dishwasher’s E15 error code, you have first to reset it and then troubleshoot what cause the water to flow down to your machine.

How To Reset Bosch Dishwasher E15 Error Code

To reset the Bosch dishwasher E15 error code, you need to unplug the power cord and wait around 15 minutes. After that, plug it back in and select your desired program.

Now turn on the Bosch dishwasher for at least one hour without adding dishes or running water through it. If this does not work, then you may have to do further troubleshooting to solve the issue.

What Causes The Bosch Dishwasher E15 Error Code?

Even when you reset the error code, the problem will come back if you do not address the root cause. So take a look at the following to make sure nothing is wrong with your dishwasher: 

Using too much detergent

The Bosch Dishwasher E15 error code can also be triggered by using too much detergent. Bosch dishwashers are designed to use the perfect amount of liquid for your load, so adding too many soap packs may cause water to spill into the lower base and trigger an E15 error message. Try reducing the number of soap packs you use.

A leaky sump basin

If a leak triggers the Bosch dishwasher E15 error code, it might come from the sump basin. The sump basin is located at the bottom of your Bosch dishwasher and collects water that has leaked into your machine as well as any overflow from spraying dishes or spills.

The Bosch Dishwasher E15 Error Code means there’s water in the lower base of this appliance because its anti-flooding feature prevents excess water from filling up your kitchen floor. It’s usually caused by a leak, perhaps in one of these components:

• Water tank (not an issue if you just installed a new filter) 

• Sump pump assembly (might need to replace the cartridge) 

• Hoses (might need to replace) 

• Broken Bosch dishwasher fixture

If you’re not sure if a broken Bosch dishwasher component is causing the leak, turn off your Bosch Dishwasher. Make sure there’s no water in it before turning it on again. If this doesn’t work, check for leaks coming from underneath or behind your Bosch dishwashing machine and fix them as needed.

Water Tank or Hose is Leaking

Like all dishwashers, Bosch dishwashers have water tanks and several hoses inside. There are hoses for circulating clean or filtered water around the interior to wash the dishes, and there are drain hoses to remove dirty water from the machine.

At the center of the dishwasher, you’ll find its water tank. This is where water for washing dishes is stored to be used during cycles. It’s generally located below a panel on the side of the dishwasher, and it should be large enough to hold enough water to complete each cycle.

In time, water tanks and hoses can become loose or damaged to the point that they leak. This could result from improper installation or unsealed joints, but it could also be that the fittings became loose to allow for easier disassembly of an old machine.

In any case, water will flow down to the lowest point of the machine — the trough at the bottom — which will trigger a safety switch, stopping the water flow.

To fix leaking Bosch dishwasher hoses and remove Bosch Dishwasher E15 Error Code, you need to replace them. Check for loose or damaged fittings and make sure all connections are tight by using a wrench.

Bosch dishwashers use a hose clamping system that connects to the Bosch dishwasher and screws tightly. Make sure this is sealed properly as well by tightening it with a wrench.

If you think your Bosch dishwashing machine needs new hoses, make sure they are tight before running water through them or adding dishes — otherwise, there’s potential for leaks in your kitchen floor, and tiles will need to be cleaned up afterward.

Broken Bosch dishwasher fixture

Bosch dishwashers have several fixtures that help water flow freely and smoothly throughout the machine, allowing it to run optimally. This includes a pump to direct the water, hoses to transport it from place to place, and fixtures to guide its flow along the way.

Additionally, Bosch dishwashers are engineered with advanced technology that helps them maintain top-notch performance over the years.

A dishwasher that is more than 10 years old (and they all will be), or one in which the surface of the dishwasher fixtures has been corroded over time, can give off an E15 code. This is a sign that water is leaking inside the dishwasher by passing through tiny cracks, or perhaps because something fell inside and cracked it. This could cause your dishwasher to trigger a safety switch and shut down immediately.

Replacing a fixture in a dishwasher requires some hardware knowledge, but it’s not too difficult for an experienced handyman. First, you’ll need to take off the panel covering the inside of the dishwasher.

Then you can unscrew any necessary screws and remove the part, replace it with a new one, and put everything back together. Hopefully, It will solve the Bosch Dishwasher E15 Error Code.

If you need help or have any questions, contact your local handyman service to help you out.

I hope you found this article helpful. If you know someone who’s experiencing this issue, please share this article. Please keep in mind that there is a lot to learn and it may take time to find something that works for you.

5 thoughts on “Bosch Dishwasher E15 Error Code [SOLVED] – Let’s Fix It”

  1. Amber Contreras

    I unplugged my Bosch so that I could figure out why it showed the E15 error. Found no water in the base and cleaned out the drain in the bottom where the filter is. Plugged it back in, and while it makes the appropriate beeping sounds, it no longer shows the display. Any suggestions?

    1. I recently had the 15 error code. After a tech failed to fix it, I dug into the problem myself.

      Now, to be clear, if you’re just talking about the water from where you can see without unscrewing anything, you’ll still need to get rid of that water (assuming it’s not a faulty sensor.) You don’t have to open of the machine, you can take it out and tilt it 45 degrees so it all makes it to the drain.

      That being said, my fix was VERY simple in the end, (going on 5 cycles with no errors when I was getting an error on every cycle) and I don’t see it discussed much next to this specific code.

      I simply cleaned the rubber seal at the door. I had gotten a torx screw driver and everything to open it up and look at the guts to see what I could see, but the first thing worked. I didn’t even replace it, I just took it out and cleaned it. Perhaps it will be more effective in the long run if I replace it. I assume that a bunch of gunk and oils or maybe too much detergent kind of broke it down a bit, but in my case just cleaning it off has lead to successful cycles without it slowing down.

      Anyway, I’m not saying that IS your fix, but I think that should be listed as a first attempt since it is the easiest and tool-free thing to try first.

  2. I had this error recently, because my filter was full with some kind of weird stuff.
    I have cleaned the filer, I plugged in the machine to see if it can pump the water out, thankfully it could, but the error stayed.
    The resolution what worked for me to get rid of the error: I have tilted the machine to the side, so excess water can pour out from the base of the machine.

  3. thank you for this; I cleaned everything but to no avail, even after waiting 15min, so then I tilted it 45 degrees back and water came out and the display came on all fixed…..super!

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