AEG Dishwasher Error Code 20

AEG Dishwasher Error Code 20: What It Means and How to Fix It

Your dishwasher is supposed to make life easier, not more complicated. But when your AEG dishwasher flashes up Error Code 20, it is trying to tell you there’s a problem with the drainage system. Don’t worry-with a little guidance, you can often resolve this issue yourself without calling in professional help.

Below, one can read about what Error Code 20 on an AEG dishwasher actually means, its possible causes, and the most workable ways of fixing it.

What Is Error Code 20 on an AEG Dishwasher?

Error Code 20 on your AEG dishwasher points out a drainage problem. In other words, the appliance cannot discharge water at one point of its cycle. Sometimes it may leave the machine full of water or might stop completing its cycle. Good news: this is one of the more accessible error codes to diagnose and repair.

Common Causes of Error Code 20

Several culprits can cause drainage problems in your dishwasher. The most common are:

Clogged Filters: Food particles can clog the internal filters of the dishwasher with grease and grime.

Blocked Drain Hose: Kinks or blockages in the drain hose may obstruct water from flowing out.

Dirty or Clogged Siphon Connection: If your dishwasher is connected to a sink drain, then a clogged connection could be what’s keeping your dishwasher from draining properly.

Faulty Drain Pump: If the pump is broken or otherwise faulty, it won’t be able to pump out the water.

General Blockages: Broken glass or bits of food are other things that might block the drainage system.

Since you already know some of the very common causes, let’s move on with how you can deal with this problem.

How to Fix Error Code 20

First, ensure your safety; that is, before you start, unplug your dishwasher from the mains power supply to avoid electrical hazards.

Proceed with the following steps to diagnose and fix the problem in question:

Step 1. Cleaning of Filters

Among the causes for drainage issues, one of the most common relates to clogged filters. Open your dishwasher and pull out the bottom dish rack to access the filter. Unscrew and pull out the filter unit. There is usually a coarse filter, a fine mesh filter, and sometimes a cylindrical micro-filter. Check these for food residue, grease, or grime. If dirty, run them under warm water, gently scrubbing with a soft brush or sponge. Replace the filter unit securely and ensure it is in place and locked.

Step 2. The Drain Hose

The drain hose carries the water from the dishwasher into your home’s plumbing system. Locate the drain hose behind the dishwasher. It should not be kinked, bent, or otherwise visibly blocked. Straighten if necessary. Remove the hose and flush it out with warm water or compressed air to remove blockages.

Step 3. Siphon Connection Check (if applicable)

If your dishwasher is connected to the sink’s draining system via a siphon, then food waste may clog this connection. Locate where the drain hose of your dishwasher connects to the sink’s waste pipe. Disconnect this, clean the debris inside with the help of a thin brush or some flexible cleaning tool, and reconnect it properly so that it will not leak in the future.

Step 4. Check the Drain Pump

If cleaning both the filters and the hose doesn’t fix the problem, then the drain pump might be the problem. You will need to remove the lower kick plate usually located at the front of the dishwasher near the floor to access the pump. Check the pump compartment for debris or broken glass that might have jammed inside. These should be carefully pulled out using a pair of tweezers or gloves. Manually rotate the impeller of the pump to ensure it is not jammed or clogged. If it is severely damaged or you find it does not actuate when a cycle is running, it might be time for replacement.

Step 5. Run a Test Cycle

Now reconnect everything, plug your dishwasher back into the power and do a short test cycle to find out if the mistake is still repeated. If everything goes fine this time and there is no displaying Error Code 20, congratulations-you solved it!

What if these steps won’t work?

Sometimes, despite your best efforts, the problem cannot be solved without professional intervention. If the above steps are followed and the error code persists, it may be a problem at a higher level, such as a faulty control board or wiring problem.

Such would be best left to AEG’s customer care or a professional appliance repair technician. Have your dishwasher model number and details ready when calling to speed up the process.

How to Avoid Error Code 20 in the Future

Clean filters regularly: Keep up the practice of cleaning your dishwasher filter every 1–2 weeks to avoid blockages.

Scrape dishes before loading: remove big pieces of food before putting items in the dishwasher. The drain hose check-up should be done periodically just to make sure it is free from kinks, blocks nothing. The final maintenance is every month to execute an empty cycle with a dishwasher cleaner or vinegar that would deplete grease and food particles.

Final Thoughts

The infuriating Error Code 20 of an AEG dishwasher is mostly something you could diagnose yourself with some patience and the right steps in most situations. Keeping your dishwasher regularly cleaned will not only help you avoid drainage issues but also extend the life of your machine.

If you’re still facing challenges or want professional advice, don’t hesitate to reach out to AEG’s customer service or a local technician to get your dishwasher back to working order.

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