Question about Zanussi 24 in. DE6850 Free-standing Dishwasher

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Flood protection is activating

When a program is started the machine pump runs and after a few seconds the end light flashes three times. The user manual states that this is for flood protection. Is there a common part failure with these dishwashers or is it most likely to be a blocked drain hose.

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  • Draw1fly Dec 07, 2007

    My Miele G2470SCVi has been repaired twice in the last 18 months for the same problem. A "faulty water valve" that is in a plastic tank that resides on the side of the dishwater. In order to repair the valve the entire tank must be replaced. Apparently the valve is designed to have continuous pressure put on it but in my unit the valve has given way on two occasions. My question to you is that they would like to send me water flow regulator that has a larger opening than the one currently installed that would allow more water to flow into the machine supposedly to reduce the pressure on this valve. Since the last valve failure with water spillage (which isn't suppose to happen with this model) I am reluctant to have a larger water flow anything installed. Does this make any sense or do you think it is a stall from Miele from doing what they should do replace this machine with a new one.

  • Anonymous Dec 31, 2007

    KUDD01 DSSS flood activation switch activated. nine months after return of Frigidaire washer, this one is need of service. What is the solutin?

  • mattybone Feb 04, 2008

    clean the drain line but it still does it

  • Anonymous Apr 10, 2008

    i start the ge dishwasher it seems to start running after a few seconds it sounds like it is draining but there is no water in it. i have checked the float on the bottom left side its ok checked the hose into the washer its ok there doesn't seem to be any leaks it is brand new only used maybe 5 or 6 times


  • Anonymous Mar 22, 2009

    solution #4 below did the trick

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Had the same problem on a Miele mashing. In my case trying to clear a drain blockage in a kitchen sink had probably forced water back into the washing machine and caused an internal leakage. Rather than remove the whole machine and tip it over, I opened the small panel at the front bottom (behind the skirting panel) (needs 'special' screwdriver for the 2 screws) and removed the water that was lying on the base of the machine. Not much (less than 5mm) but enough to lift the white polystyrene float (a round disc about 10cm diameter) which was activating the micro-switch and causing the F70 message.

Posted on Apr 13, 2008

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The flood protection unit is placed at the front of the bottom front panel of the washer. The front panel just clips out revealing the inner gubins. If nasty liquid comes out when you tip the unit over this may be because over time & not quite emptying those cups of tea etc before putting the cups into the washer, this old liquid flows along the bottom door seal & into the bottom drip tray via the door hinges. Scunge builds over time & it does not take a great deal of liquid to trip the flood protection. Solution? Tip over the unit, allow the scunge to come out, disinfect as best you can (including hands after this operation, its life in there Jim but not as we know it!) & test out of situ with something like a Finish dishwasher cleaner. Saved me a call out & cost me the cleaner only. Result.

Posted on Apr 08, 2007

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Flood protection is generally activated when a leak occurs.Leaking liquid ( water + ....) in a bassin at the lowest point in the dishwashers. In the bassin is also a floater, which goes up with incoming liquid , and at a certain level, by means of a cantilever it will activate a micro-switch, and holding the dishwasher on alert. Unplug the diswasher, and tilt it over up to 60 degrees. If liquid gets on the floor, there is a leak somewhere, most often between pump and spraying arms. ( Maybe these where not cleaned and block the pump, so pressure can get high and liquid leaves at wrong place). Check if spraying arms are not blocked, and then try if the dishwasher starts again. If after a while the flood protection start again, call a repair-service. If no liquid gets on the floor, probably the dishwasher was moved recently, it is possible that the bassin itself has been pushed up by a foreign body to the diswasher. Again , tilt the diswasher and look under the dishwasher.

Posted on Oct 29, 2006

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Miele provider the only solution to this situation. They installed a brand new unit because we were still under warranty. They took the old machine presumably to try to find out the cause of a the failed water inlet valve on the reservoir tank. Before they took the machine they tried to relieve pressure on this valve by placing a larger (less pressure) blue restricter when they replaced the tank for the second time, but even with two new parts it did not make it through the first wash cycle before flashing the infamous F70 code.

Posted on Jan 02, 2008

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MY DISHWASHER STARTS BUT THE WATER DOES NOT COME THROUGH AT ALL

Posted on Jan 01, 2008

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You should be aware that the overfill overflow, the short pillar in the machine with holes in it leads directly to the bottom tray and it will partially immerse the pump motor and cause it to fail.  There is nowhere for the water to escape, apart from tipping the machine over and draining the water on floor.  It appears that water could seep through through the overflow during normal operation.
If water is getting into the tray through the overflow you can prevent this by turning the machine on its side taking off the bottom tray and then connecting the rubber tube that comes out of the overflow back to the other outlet from the overflow forming a closed loop.  All that will happen now is that if the machine does over fill (unlikely - this must be a failure) then the water will seep from the door seals. It will not sit in the bottom tray and cause the main motor to fail.
I have heard that the newer models do not have the overflow holes in the pillar - draw your own conclusions.
Please note that I am just an owner, tired of replacing pump motors and wondering how to extend the useful(?) life of a machine that was bought new just a couple of years ago.  I would not recommend the D63. 

Posted on Oct 31, 2007

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Tilting remedey worked for 2 flash and pause fault..Top Man! Thanx (fault coinsided with blocked u bend under kitchen sink)

Posted on Oct 05, 2007

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I have had the KUDD01DPPA drawer dishwasher since 12/30/05. The "Flood Switch" has been activated 8 TIMES. Our dishwasher is not freestanding - it is under the counter; therefore it does not move. Tilting it would be impossible. We've had service on it twice. There answer to us was to "shut off the breaker for several days and see it that works." We need another dishwasher!

Posted on Apr 16, 2007

I had the flood switch activate. removed the drawers and found that water was leaking at the back of the top drawer. They use a re-enforced white plastic cable guide and support on the hoses (in water, drain out, elect connect)to each drawer. The one to the top drawer had broken in half. When the drawer was shut part of the cable guide got caught over the top of the drawer. This prevented the seal from closing properly and allowed water to leak out. Used wide electrical tape to hold it together and dried up the water. Worked ok until I could replace the cable guide

Posted on Feb 16, 2007

Simply it could be the door seal has deteriorated, especially around the bottom, letting samll ammounts of water to escape below where the floater switch is helded, causing a short.

Posted on Feb 12, 2007

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Posted on Jan 02, 2017

SOURCE: Dishwasher was tipped and won't run

I have the same problem if you take off the tray below the front door and set a small blow heater in there it will dry the out the anti flood switch. It usally takes about 25 mins for the machine to start working again.

Posted on Jul 20, 2007

Noggin
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SOURCE: Zanussi DE6755

This is for the right model, but is the UK version, all should be the same but power supply details might differ if you are in US etc. http://www.serviceforce.co.uk/pdfs/U23297.pdf Hope this helps :)

Posted on Mar 07, 2007

  • 1 Answer

SOURCE: Zanussi built in aquasave zt 685

I think I had a similar problem to this. It seems like it was starting a cycle but then it just stalled and made a buzzing noise and it did not drain properly. I opened the bottom of the dishwasher where the draining pump was located. take off the plastic cover and I found bits of broken plates were jamming the fins on the pump... Try this and see how it goes.. Hope it was of some asistance.

Posted on Mar 09, 2009

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Zanussi zdt 6053 usually will not run full cycle (on any cycle) but stops with constant error beeps. But it is draining ok and sometimes goes full cycle (not often) Any ideas?


Could be anything!
If you suspect that there is a fault then it will be displayed by blinking LED "END OF CYCLE". As the display of failure in hexadecimal code it can flash up to max. 15 times than short pause and after that repeat fault code. You must to count the number of times the LED "END OF CYCLE" flash up.

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