Question about AEG 23 in. Favorit 50750Vi Built-in Dishwasher

Open Question

AEG OKO_FAVORIT 6281i dishwasher - error code 20 (Siphon blocked). Out of the blue after 6 years of reliable once-a-day family use, my AEG OKO_FAVORIT 6281i dishwasher started OK but about 3 minutes into the cycle began flashing error code 20. At which point there was a litre or two of cloudy water sitting at the bottom of the machine. Since then I've tried redirecting the drain hose into a bucket, after disconnecting it from the kitchen drain. Same symptom, and no outflow except what was already in the hose. Tried powering the machine off and on at the mains switch - same symptom 3 minutes into a new wash cycle. Tried blowing (not violently) down the drain hose and nothing happened except I got a bit red in the face. Conclusion: either there's a valve in there stopping the backward flow of air, or the hose has become seriously blocked somehow - in an incredibly airtight sort of way. The latter is especially hard to believe given the 3-stage filter at the bottom of the machine which has been fully in place since day #1 and is still as clean as a whistle. (I pre-rinse everything under the kitchen faucet.) Or maybe it's not a simple case of a blocked siphon after all. A faulty motherboard perhaps? (Remember HAL in '2001'. Could my dishwasher be plotting to kill me? :-) My problem is that I don't want to pay $$$ for a certified AEG technician to come over and do something I can do myself - which seems almost certain, given the disclaimer at the end of the owner's manual. (paraphrased: "If the problem & solution are covered in the troubleshooting guide, then the service visit will not be covered by warranty.") It's frustrating that the same manual has no tips about how to start clearing a blocked siphon - not even a diagram that contains the word "siphon". I hope you can understand my frustration. To me as a non-technical English speaker, "siphon" means a hose that a liquid flows through without need of a pump, just primed with a bit of suction to get it started moving uphill. But - and this is my worry - the diagrams in the manual quite pointedly use the term "drain hose" for that part, and not "siphon". So maybe the original AEG writer on page 32 was referring to something else - maybe a special part in an out-of-the-way location not shown in any diagram - and with a special name in German that has been translated as "siphon" just to make my life more interesting. Please help!

Posted by on


3 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 3247 Answers

SOURCE: After 6 years of once-a-day

The easiest way to empty the dishwasher would be to use a small container and empty most of the grubby water. Then take a towel or two and dry it out.

Now about the error code - does it come back when you turn the power off and on again?

Posted on Jul 02, 2010

  • 10515 Answers

SOURCE: After 6 years of once-a-day


20 indicates a drainage problem. Now, if the appliance has drained it would indicate a problem with the pressure switch.

If the machine was laid on it's back or side water could enter the pressure switch.Remove the side panels and locate the pressure switch and tubing. (right hand side if memory serves me correctly), disconnect the pressure tube and blow down it to clear any water, debris or blockage. If any water drips out of the pressure switch, get the hairdryer on it and thoroughly dry it out. Basically it's not detecting that it's empty. Please note, it could be the main PCB at fault but it's best to rule out everything else first.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Jul 08, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Error 20 in dishwasher AEG 77012 wop

i20 error code means:
Water is not pumped off and could be:
  • Fault with discharge pump
  • Discharge pump deenergized (faulty wiring or no activation by electronics)
  • Obstruction/blocking (filters in the appliance, discharge opening in discharge trough, discharge pump, discharge hose, siphon, cover plug at siphon connection not removed during first commissioning)
  • Discharge hose bent or connection height above 100cm
  • Ball valve in discharge trough glued / blocked (discharge pump does not aerate)
or water level inside appliance is not detected and than
could be:
  • Pressure controller faulty
  • Pressure controller hose obstructed or bent
  • Insulation fault with heating element


Feb 19, 2016 | AEG Dishwashers

1 Answer

I have a oko favorit 4071 doesnt start and display H8 error.

I think this is not the error code. I belive this is hardness of water (could be set from 0 or 1 to 10, depending of model. Read your user manual how to exit the program for adjust the water hardness).

Error code for your appliance depending on model and look like:
i10, i20,i30............ or
C1, C2,C3.............


Jul 06, 2015 | AEG Dishwashers

1 Answer

My oko favorit 6081sensorlogic stopped working half way through a cycle and displayed the code c21 what does this mean

OKO codes that start with 20 lead to the siphon being clogged
(no water coming in)

Sep 25, 2014 | Washing Machines

1 Answer

How can I correct error code 25 on an AEG OK-LAVAMAT 74640 update washing machine mean?

Family error code "E20" means difficulties in draining, but I never heard for error code E25 on this model. Could be : E21, E23 and E24 error code.


Aug 24, 2014 | AEG Washing Machines

1 Answer

Aeg oko favorit 40300 service manual

AEG OKO FAVORIT 40300 When switching dishwasher on no water is flowing into the the dishwasher

Please help

Jan 11, 2012 | AEG Dishwashers

2 Answers

After 6 years of once-a-day family use my AEG OKO_FAVORIT 6281i dishwasher starts up OK but a few minutes into the cycle begins flashing error code 20. At this stage there's a litre or two of cloudy water...

The easiest way to empty the dishwasher would be to use a small container and empty most of the grubby water. Then take a towel or two and dry it out.

Now about the error code - does it come back when you turn the power off and on again?

Jul 02, 2010 | AEG Dishwashers

1 Answer

AEG OKO FAVORIT 6050 trips earth leakge

This is typical of a water leak onto electrical connection OR the electrical element has shorted internaly . Check this with a Ohm meter and itshould show the problem

Dec 20, 2009 | AEG 24 in. Favorit 60830 Free-standing...

3 Answers

Drain pump keeps running AEG oko favorit

This seems like the anti flood system (polystireen float / micro switch) at the base of the washer is triggered,\. This puts the washer in pump out mode and stops inlet of water via the inlet solinoid. Dry the water on the base and then check for any water leaks. (pipe leak

Aug 29, 2008 | AEG Favorit 50500 Built-in Dishwasher

1 Answer


C3 error means that there is water at the bottom of the dishwasher. Unplug the dishwasher, slide it forwards and push it back. So it stands on the 2 back knobs. Do this atleast at a anle of 45 degrees. You will see water flowing at the floor.
If this happens often you have a leak somewhere. Time to cal the technician then.

Mar 03, 2008 | AEG Dishwashers

Not finding what you are looking for?
AEG 23 in. Favorit 50750Vi Built-in Dishwasher Logo

Related Topics:

477 people viewed this question

Ask a Question

Usually answered in minutes!

Top AEG Dishwashers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers


Level 3 Expert

822 Answers


Level 3 Expert

1205 Answers

Are you an AEG Dishwasher Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides