Bosch Dishwasher Error Code E15 – What It Means and How to Fix It

If your Bosch dishwasher is flashing the dreaded E15 error code, you’re not alone. This is one of the more common issues Bosch owners run into, and while it can be frustrating, it doesn’t always mean the appliance is done for. With the right guidance, you may be able to fix it yourself. In this article, we’ll walk you through what E15 means, why it happens, and what steps you can take to fix it. And if it’s too much to handle on your own, we’re always here to help with a free service call with repair.

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What Does the Bosch E15 Error Mean?

The E15 error indicates that your Bosch dishwasher has detected water in the bottom pan—essentially a leak. To prevent flooding or electrical issues, the dishwasher triggers this error and automatically shuts off. While this is a helpful safety feature, it also means you’ll need to investigate what’s causing the water leak.

Common Causes of Bosch Dishwasher E15 Error

Here are the most frequent reasons you might see this code:

• Loose or damaged hoses

• Cracked water tank or tub

• Faulty or overfilled float switch

• Leaking door seal or gasket

• Too much detergent or wrong type of detergent

Step-by-Step: How to Fix Bosch E15 Error Code

1. Unplug the Dishwasher

Safety first—disconnect the appliance from power before doing any inspection or repair.

2. Pull Out the Dishwasher

You’ll likely need to move the dishwasher out from under the counter to access the back and sides. Be careful with the water and power connections.

3. Check for Leaks

Remove the side panels or bottom access panel and inspect the base pan for standing water. Use a sponge or towel to soak it up. Look around for signs of where water may have leaked from—check hoses, seals, and joints.

4. Inspect the Float Switch

There’s a polystyrene float in the base pan that rises with water. If it’s stuck or waterlogged, it will trigger the E15. Ensure it's moving freely and hasn't been damaged.

5. Let It Dry

Sometimes the leak is a one-time overflow (like too much detergent or a tilted machine). Let the dishwasher dry out completely for 24 hours, then plug it back in and test.

6. Run a Test Cycle

Once everything’s dried and put back together, run a short cycle to see if the error returns. If it does, the problem likely wasn’t just water in the pan—you may need to replace a part or seal.

When to Call in a Professional

Get Professional Help Today!

If you’ve checked the basics and the E15 code is still showing up—or you’ve found a cracked part, damaged hose, or faulty float switch—it’s best to call in a technician. Working on dishwashers can be tricky, especially when leaks are involved. Our licensed technicians can diagnose and fix the issue quickly. And remember, when you book online and get $25 off, it makes the choice even easier.

Plus, we offer a free service call with repair, so you don’t have to pay just for us to take a look.

👉 Book your appointment now and get your Bosch dishwasher back in action.

Final Thoughts

The Bosch E15 error is your dishwasher’s way of protecting itself—and your kitchen—from water damage. In many cases, it’s a minor fix. But if the problem is more complex, don’t wait too long. Water issues can lead to bigger problems down the road. Whether you handle it yourself or need expert help, knowing the cause is the first step. We're here when you're ready.