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

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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!

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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

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taran_2005
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SOURCE: After 6 years of once-a-day

Hi,

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

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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?

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