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Understanding and Fixing the Neff Dishwasher E22 Error Code
If your Neff dishwasher is flashing the E22 error code, there’s no need to panic. It is an issue experienced by many users, and mostly it is simple to fix. The article will help you through the meaning of the E22 error, what the cause could be, and how you can fix it yourself before you call in the pros.
What Does E22 Neff Dishwasher Error Code Mean?
If the dishwasher shows an E22 error code, that means the device detects residual water or an obstacle in the filter area. In other words, water is not drained completely in the dishwasher. This may be due to a blocked filter or for an issue related to the drainage system.
While this error may cancel your dishwashing cycle, the purpose is to protect the machine from further potential damage due to an inadequate drainage system.

Common Causes of the E22 Error
There are a few common causes that may cause this error in your dishwasher:
Clogged Filter: Food particles, grease, and debris accumulate in the filter over time, obstructing proper water flow.
Blocked Drainage Hose: A kink or blockage in the drainage hose can prevent water from being pumped out.
Blockages in the general area of the pump: The impeller or pump housing may be blocked by foreign objects like pieces of broken glass or food.
Now that you may have an idea of what the problem could be, here is how you can go about fixing it.
How to Fix the E22 Error Code
Below is a step to step guide which will help you troubleshoot the issue and rectify it:
Step 1: Switch Off the Dishwasher
Safety first! Switch off your dishwasher and unplug it from the power source before you start any kind of maintenance. This will ensure that no accidents occur while inspecting or fixing the machine.
Step 2: Empty the Dishwasher
Take out all dishes and racks to reach the filter and other internal parts easily.
Step 3: Check and Clean the Filter
The filter is usually the reason for this error code. The following steps are to clean it: The filter is generally located at the bottom of your dishwasher. Twist it counterclockwise to remove it. Rinse it well under warm water for the accumulated debris or grease. If the filter is really dirty, take a soft brush or old toothbrush and clean it in detail. Put the filter back securely.
Step 4: Check the Filter’s Drainage Area
After cleaning the filter, check its surrounding area for any visible build-up of food particles and broken shards of glass. Remove all that is blocking the drainage area carefully.
Step 5: Check the Drain Hose
Locate the drain hose at the back of the dishwasher. Look for kinks, twists, or blockages in the hose. If you find blockages, remove the hose and flush it out with warm soapy water or a long flexible cleaning tool. Once the drain hose is free, attach it back properly.
Step 6: Pump Impeller
If the issue continues, then clear the pump impeller of blockages: Reach the pump housing-see your user manual for specifics. Check the impeller for blockages caused by any foreign object. Carefully remove any blockages using tweezers or similar tools.
Step 7: Test the Dishwasher
After cleaning the filter, drainage hose, and pump area, it’s time to test the dishwasher: Replace all components and reconnect the machine to the power source. Run an empty cycle to check if the issue is resolved. If the dishwasher operates smoothly and the E22 code no longer appears, you’ve successfully fixed the issue!

When to Call a Professional
If the above steps are done and the error is still occurring, then the problem might be a fault in the drain pump malfunction or a faulty sensor. At this point, it is best to contact Neff’s customer support or a qualified technician.
How to Avoid E22 Error in the Future
Below are ways you can avoid the E22 error in the future:
Clean the Filter: Get into the habit of cleaning it every couple of weeks, depending on how heavily your dishwasher is used.
Rinsing Plates: Although a dishwasher is designed to cope with a small amount of food residue, it’s still best to rinse off heavy food residue to minimize the risk of blockages.
Check the Drainage Hose: Occasionally check that this hose has no kinks or blockages in it, particularly if the machine has been moved.
Use Dishwasher Cleaner: Run a cleaner through the dishwasher once a month to prevent a buildup of grease and such inside the machine.
Conclusion
The E22 error may seem frustrating at first, but with a little guidance, it’s a problem that can often be resolved in no time. By following the steps above, you should be able to get your Neff dishwasher up and running and minimize the chances of finding yourself in this situation in the future.
Anything more complicated, don’t hesitate to contact a qualified technician or look up the details in your Neff dishwasher user manual. Give your dishwasher the care it deserves to keep your dishes sparkling!