AEG Dishwasher Error 20? Here’s What You Need to Know (and How to Fix It!)
Uh-oh! Are you seeing Error 20 flashing on the display of your AEG dishwasher? If you’ve landed here, chances are you’re feeling a little annoyed (and maybe slightly panicked). Don’t worry you’re not alone, and the good news is that Error 20 is usually a fixable issue. Roll up your sleeves and let’s get your dishwasher back in action!
What Does AEG Dishwasher Error i20 Mean?
Error 20 (often shown as E20) on your AEG dishwasher indicates a drainage problem. Simply put, the water isn’t draining properly from the appliance. Now, before your imagination runs wild picturing a mini flood in your kitchen, keep in mind that the issue could be something as simple as a clogged filter or a kinked hose.
Wouldn’t it be great if all appliances came with instructions as clear as Error 20’s fix? Well, that’s why I’m here!

Potential Causes of Error i20
Error 20 can be caused by a variety of issues, including:
- A clogged dishwasher filter.
- A blocked drainage hose.
- Issues with the drain pump.
- Food debris or grease buildup causing blockages.
But don’t worry we’ll tackle these one at a time!
Step-by-Step Guide to Fix Error 20
1. Turn Off and Unplug the Dishwasher
Safety first! Before doing any troubleshooting, make sure to power off your dishwasher and unplug it. It’s always a smart move to avoid any electrical surprises.
2. Check and Clean the Dishwasher Filter
The filter is the first suspect when Error 20 pops up (and often the culprit).
- Open the dishwasher door and remove the lower rack.
- Locate the filter (usually at the base of the dishwasher).
- Twist it to remove, then rinse it thoroughly under running water to remove debris or food particles.
- Use a soft brush to get into all the nooks and crannies.
Pop it back in securely once it’s clean. Easy, right?
3. Inspect the Drainage Hose
A kinked or blocked drainage hose can stop water from flowing out properly.
- Pull the dishwasher slightly out from the wall (carefully!) to access the back.
- Check for any kinks, bends, or twists in the hose.
- Detach the hose and inspect the inside for blockages. A narrow brush or pipe cleaner works wonders for clearing clogs.
- Reattach the hose securely, ensuring it’s not twisted.
4. Examine the Sink Drain
If your drainage hose connects to your kitchen sink drain, this could also be the source of the problem.
- Run water through your sink and check for slow drainage.
- Use a sink plunger or unclogging agent if necessary to clear the pipe. A clogged sink drain can back up water into your dishwasher!
5. Check the Drain Pump
If the filter and hose are clear, the next step is to inspect the drain pump. This part can seem a little more technical, but it’s manageable!
- You’ll need to remove the kickplate (at the bottom of the dishwasher) to access the pump.
- Look for any obstructions, like food particles or small objects, inside the pump.
- If it feels tricky, don’t hesitate to consult the AEG manual or call in a professional.
6. Restart the Dishwasher
Once you’ve done all the above, plug your dishwasher back in, turn it on, and run a cycle. Fingers crossed Error 20 should be gone!
What If Error 20 Persists?
If you’ve followed all the steps and that stubborn Error 20 is still flashing, it could be due to a more technical issue (like a damaged pump or electrical fault). At this point, it’s best to:
- Contact AEG customer support for guidance.
- Call a professional technician for repairs.
Sometimes, it’s better to leave it to the experts!
Tips to Prevent Error 20 in the Future
Want to keep Error 20 at bay? Here’s how to reduce the chances of future drainage hiccups:
- Clean the filter regularly. Give it a rinse every two weeks to keep it clear.
- Scrape off food debris. Before loading dishes, scrape off any leftover food to avoid clogs.
- Run hot water cycles. This keeps grease from building up in your dishwasher’s pipes.
- Check the drainage hose once a month. Ensure it’s not bent or clogged.
A little routine maintenance goes a long way toward keeping your dishwasher running like a champ!
Final Thoughts
Dealing with Error 20 might feel like a hassle, but with a bit of patience and elbow grease, your AEG dishwasher will be back to sparkling dishes in no time. Think of it as a minor speed bump on the road to kitchen convenience!
Did this guide help you fix your dishwasher? I’d love to know! Drop a comment below, or share this article with someone who could use a hand with their Error 20 issue.
Here’s to a smoothly running dishwasher and shiny, clean dishes!