Re: Antiflood system triggered-how to reset on aeg...
Hello everyone. Have just fixed a problem with my aeg dishwasher thanks to this site. My anti flood switch in, so I unpluged, pulled the machine out, tilted it, wiggled the outlet hose, which I think was a little kinked and way hay it works. Thanks FIX YA. Good luck everyone. Carolyn
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Definitely, water drain time-out. Error code i20.
The pressure switch doesn't return to EMPTY (1-2) after two drain phases lasting 120 seconds.
Drain circuit obstructed/blocked; drain pump
interrupted or jammed (foreign bodies); level
pressure switch blocked on FULL (1-3); hydraulic
circuit of pressure switch obstructed; wiring faulty;
circuit board faulty.
Thanks to your detailed description of failure I conclude that in drain phase (after starts drain pump) leaks water and causing a short circuit. I would thoroughly reviewed drain hydraulic circuit. If is alarm displayed and there is no water inside dishwasher then check heater and anti-interference suppressor.
The outlet pump is triggered by the anti flood micro switch via the polystyreene float on the base of the washer. If any water for whatever reason (leaky pipe)is on the floor the machiene automatically switches to pump out mode and only works once the water and the cause is rectified..
The problem was solved by opening the machine and finding that the bottom "Y" pipe that has 3 inputs is of extremely poor quality and perforates with pin holes allowing a small amount of water to squirt out. This triggers the anti flood and error status lights flash. The outlet pump is activated and machine does not do anything. You need to replace this hose or like I modified it to work from a 32mm Y plastic junction available from most hardware shops. The wire clamps for this was replaced by "jubilee" screw tight clamps.
I worked on a table and also removed the "Brick" placed at the bottom for balance purposes by cutting the back plastic down with a saw. This made the job very easy...
The bottom "Y" 3 point hose at the bottom connected to main motor is of poor quality and does have 3 wire clamps. The hose does perforate and small pin hole causes water at the bottom to trigger the anti flood system with warning lights flashing and pump motor on ...
This sounds like the anti flood system has triggered. This does put the washer on a pump out mode and the outlet pump runs all the time. The trigger device is a polystireene slab in plastic bracket with miro switch at the bottom of the washer. Dry the bottom out and check for water leaks (hose clamp / hose) and this should solve the problem.
to check the antiflood, remove the bottom front panel and the bottom tray is exposed. if there is water in the tray, this will actuate the antiflood switch. just mop out the water and the machine will run. turn off from mains when you do this.
however, this will not give a hum. the antiflood switch just turns on the drain pump.
if no water found then get back to me
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
Switch off at the mains. Take a side panel off and tip your dishwater over 45degrees towards th open side. Make sure you put towels down to soak up the water that will come out of the base. This will reset the flood detector. Reassemble. Switch back on and let the dishwasher finish its cycle and away you go. Remember this does not solve the reason for the flooding but it will get your dishwasher going again. Depending on the cause of flooding you may only need to reset like this once a year.
It is most likely to be the wash pump leaking underneath, the float switch lies underneath the dishwasher, if you tip it back slightly you will probably find that water will leak out, that will prove that it is leaking and it will probably work a couple of times after this but it isn't the answer i'm afraid, a wash pump is not really the sort of thing you should tackle yourself.