Understanding the Bosch Dishwasher E24 Error Code
When your Bosch dishwasher displays error code E24, it means that the dishwasher is not draining properly due to the drain filter being blocked. Along with the E24 error code, you are likely to encounter several indicative symptoms signaling a drainage problem in your Bosch dishwasher. You may observe water pooling at the bottom of the dishwasher post-cycle, experience an interruption during operation with the dishwasher pausing or stopping unexpectedly, or hear unusual noises such as gurgling or humming. These all point towards a clog due to the drain filter being blocked.
Troubleshooting the E24 Error Code
To find out the cause of an E24 error code, please check the following things:
- Check the inlet hose and ensure it’s not kinked or damaged.
- Check the siphon connection and ensure it’s sealed.
- The pump cover may be loose. Please locate it under the filter and ensure that it’s not loose. Review your owner’s manual to learn where it’s located.
- If the dishwasher drain hose is connected to a garbage disposal’s dishwasher drain connection, ensure that the plug is removed from the disposer’s dishwasher drain connection.
- After fixing the problem, reset the dishwasher and error code according to the owner’s manual.
If the steps outlined above haven’t resolved the E24 error code on your Bosch dishwasher, don’t worry—we’re here to help. Our Bosch Customer Service team is dedicated to providing you with the support and solutions needed to get your Optimal performance.
Advanced Troubleshooting Steps
The drain pump may be blocked. The pump is located at the bottom of the dishwasher underneath the filter. First, remove the filter completely to reveal the drain pump cover. Next, pry off the pump cover with a spoon until it clicks. Grip the cover and pull upward until you feel resistance. Then pull forward to remove the cover completely. Check the pump and remove any debris and standing water with a sponge. Use caution as some debris may be sharp. If needed, review your owner’s manual for more specific instructions.
A blocked or kinked drain hose may prevent your Bosch dishwasher from draining properly, which will result in an E24 error code. To figure out if the drain hose is causing the error: Unplug the dishwasher from the power source. Locate the drain hose. Depending on how your dishwasher is installed, the hose may be underneath your kitchen sink, or it may be located behind your dishwasher. You might have to use a furniture dolly to move your dishwasher away from the wall. Check to see if the drainage hose is bent or kinked. If it is, straighten the hose so that the water can drain freely. If it appears straight, check the hose for clogs.
User Experiences with the E24 Error
Hi, Savas— just wanted to thank you for writing all this up, and share my own experiences. I’ve had one of these dishwashers for about four years, and fairly regular E24 problems. Not really being all that interested in dealing with the actual cause, the extent of my repairs were not more than pulling hard and shaking the drain hose until the problem ‘went away’; which, until recently, they always did. A few months ago I got a consistently recurring E24 that would not go away; I wasn’t able to run through a complete cycle at all. It was at that point that I realized that the naive approach at handling the problem wasn’t going to work anymore, and I started looking at sites as yours to understand how this whole drain system works. I inspected the air gap and removed some blockages; but ultimately it was by disconnecting and flushing the drain hose that I found the culprit: a small 8mm-diameter 3mm-wide plastic cylinder.
I have had this exact issue. The dishwasher would not drain and showed E-24 code error. Very frustrating I randomly fixed it several times but then figured out it was simply the air gap was plugged. Took off the metal cover and popped the little plastic piece inside and every time very simple fix just had to remove vegetable piece that plugged the air gap. So annoying.
Buying Guide for Bosch Dishwashers
If you’re looking for a new dishwasher, this guide will give you the information and insights to find one that will fit your home and lifestyle perfectly. As a global leader in home appliances, we know a thing or two about what makes the best dishwasher that will save you time and effort. This dishwasher buying guide introduces all the latest dishwasher features and technologies and shares hints on how to get the most from your appliance.
Standard 24″ width dishwasher Most kitchens will be perfect for the standard 24″ width dishwasher which has a large capacity to fit up to 16 place settings.
18″ width, ADA-compliant height dishwasher This is a smaller width than our standard dishwashers, and is a good fit for small space kitchens. The height is ADA-compliant for those who have special height requirements.
Handle Styles:
- Bar Handle: classic and traditional, and provides a spot to hang dish towels for those who like to have towels handy.
- Pocket Handle: streamlined and classic, the pocket handle blends seamlessly with your kitchen with no obtruding handle or buttons.
- Custom Panel: our panel ready dishwashers can be outfitted with a custom panel to integrate with the rest of your cabinetry for the ultimate design-forward aesthetic.
Bosch dishwashers are designed with advanced sound-dampening technologies, including multiple insulation layers, grind-less food filtration, and a sound-absorbing base. With noise levels as low as 40 dBA, they are the quietest dishwasher brand in the U.S.
Best Bosch Dishwasher Recommendations
Here are our top picks for Bosch dishwashers, each catering to different needs and budgets:
1. Bosch Benchmark Series SHX89PW75N
Pros: Operating at just 38 decibels, this is one of the quietest dishwashers available. A built-in water softener helps to eliminate streaking and staining to leave dishes and glassware looking pristine. It offers a third rack for flexible and robust loading options.
Cons: Some reviewers have pointed out that the three-piece kickplate can make the dishwasher look different than expected after installation, and others had issues with the controls.
Best for: Someone who will settle for nothing less than clean, spotless dishes.
2. Bosch 300 Series SHE53C85N
Pros: Reliable performance with RackMatic® adjustable racks and whisper-quiet operation at 46 dBA. Its stainless steel interior ensures durability and superior drying.
Cons: The touch-sensitive plastic control panel is finickier than its previous manual buttons, and it was hard to keep clean during testing. No longer Energy Star–certified.
Best for: Households seeking reliable performance with added convenience.
3. Bosch 800 Series SHX78CM5N
Pros: Recommended by Consumer Reports for its performance, reliability, and energy efficiency. Features CrystalDry™ for superior drying and Home Connect™ Wi-Fi for remote monitoring.
Cons: Higher price point compared to the 300 Series, which may not justify the additional features for budget-conscious buyers.
Best for: Modern kitchens seeking advanced features and seamless integration.
Comparison Table
| Model | Noise Level (dBA) | Place Settings | Key Features | Price Range |
|---|---|---|---|---|
| Bosch Benchmark SHX89PW75N | 38 | 16 | Water softener, third rack, ultra-quiet | $1,800–$2,500 |
| Bosch 300 Series SHE53C85N | 46 | 16 | RackMatic® racks, stainless steel tub | $800–$1,100 |
| Bosch 800 Series SHX78CM5N | 42 | 16 | CrystalDry™, Home Connect™ Wi-Fi | $1,200–$1,500 |
Analysis and Insights
Bosch dishwashers are renowned for their quiet operation and reliable performance, but the E24 error highlights a design flaw in their drainage system, particularly with models sold in the U.S. The reliance on filters rather than food choppers, while reducing noise, increases the likelihood of clogs, especially in households that don’t pre-rinse dishes. This contrasts with American-style dishwashers that use choppers to handle food waste, which may be noisier but less prone to drainage issues. For buyers, this trade-off between noise and maintenance is critical. The Benchmark Series, made in Germany, offers superior build quality but at a premium price, while the 300 and 800 Series provide excellent value for mid-range budgets.
Consumer feedback suggests that regular maintenance, such as cleaning the filter monthly and checking the air gap, can prevent most E24 errors. However, persistent issues may indicate a need for professional servicing, especially if the drain pump or control board is faulty. For those considering a purchase, models with CrystalDry™ technology and Wi-Fi connectivity offer modern conveniences but may not be worth the extra cost if basic reliability and quiet operation are the priority.
Frequently Asked Questions (FAQs)
1. What does the E24 error code mean on a Bosch dishwasher?
The E24 error code indicates a drainage issue, typically caused by a clogged filter, kinked drain hose, or blocked drain pump. Water may pool at the bottom of the dishwasher, or you may hear gurgling noises.
2. How can I prevent the E24 error from recurring?
Regularly clean the filter every 1–2 months, rinse dishes before loading, ensure the drain hose is not kinked, and use Bosch-recommended detergents. Periodic descaling with Bosch descaler is also advised in hard water areas.
3. Can I fix the E24 error myself, or do I need a technician?
Most E24 errors can be resolved by cleaning the filter, checking the drain hose, or inspecting the air gap. If these steps don’t work, contact Bosch Customer Support at 1-800-944-2904 or a certified technician for potential pump or control board issues.
4. Are Bosch dishwashers worth buying despite the E24 error?
Bosch dishwashers are highly rated for their quiet operation and cleaning performance. The E24 error is a common issue but manageable with regular maintenance. Models like the 800 Series offer advanced features that justify the investment for many users.
5. How do I reset my Bosch dishwasher after fixing the E24 error?
Press and hold the Start or Reset button for 3–5 seconds, or unplug the dishwasher for 30 seconds and plug it back in. Refer to your model’s manual for specific instructions.
Conclusion
The Bosch dishwasher E24 error, while frustrating, is a manageable issue with proper troubleshooting and maintenance. By understanding the causes—clogged filters, kinked hoses, or blocked pumps—users can often resolve the problem without professional help. When purchasing a Bosch dishwasher, consider models like the Benchmark Series for premium performance or the 300 Series for budget-friendly reliability. Regular care and attention to installation details, such as the air gap and drain hose, will ensure your dishwasher runs smoothly for years.
For more appliance troubleshooting tips, visit Consumer Reports or This Old House.