How to reset the Anti-Flood Device on your Electrolux Dishwasher

Have you ever had that heart-sinking feeling when an appliance makes a noise you’ve never heard before? An alarm sounds and all you can think of is how much it’s going to cost you to call an engineer out to fix it. This happened to me a couple of evenings ago. I have an Electrolux integrated dishwasher, model ESL 4200LO. It’s only just out of warranty, typical!

I checked the machine out and found that the empty pump was running constantly, even when I opened the door, usually everything stops at this point, but it didn’t. The alarm was beeping 3 times intermittently along with a flashing “end of cycle” LED. The only way I could get everything to stop was to turn off the power, not the ideal situation.

I checked the manual to see what the alarm meant and it turns out that the Anti-Flood device had been activated. This activates if the machine detects a leak, handy to know that your kitchen won’t be flooded if something goes wrong.

So how to fix it? With the help off Google and some common sense I managed to do it and it was surprisingly easy. Why am I writing this post if it’s easy and you can find the information online? I found the information from lots of sources, there was no one site that told me the full story and definitely none with pictures.

Please make sure the power is switched off for this method, we don’t want any accidents.

Here goes…

1 – Remove the kickback (this is the narrow piece of wood found below your cupboard doors that hides the area under the kitchen cupboards).

2 – Use a screwdriver to remove the screws that hold the lower cover in place on the base of your dishwasher. It’s a little awkward but doable.

3 – You should now be able to see into the lower part of your dishwasher. If you have a torch or a phone with an LED flashlight this will help. You will be able to see into the “reservoir” and hopefully be able to see the water. Here’s a picture of what mine looked like:

Dishwasher anti flood device

Reservoir filled with dirty water, polystyrene switch in the background

You can see the water and also towards the back you can see the anti-flood device activation switch. It’s the white polystyrene float that’s in the water. This is what has floated in the water and activated the empty pump.

4 – Get a small sponge or cloth and empty the water from the reservoir into a bucket. This may take some time as you can only do a little bit at a time but it will work.

5 – Once all the water has been removed the polystyrene switch should be fully down. If not gently pull it down so it sits on the plastic base. Here’s how it should look:

 

6 – Now reattach the cover with the screws and replace the kickback.

Your dishwasher should now work as normal. If not then you’ll unfortunately have to contact an engineer to fix the issue.

I fixed mine last night so I am hoping it’s either a one off job or something I have to do yearly. If it’s something I have to do any more often than every quarter then I think I have a proper leak.

Please note, this way worked for me. I can’t accept any responsibility it doesn’t work for you or if your dishwasher is broken as a result. This is done so at your own risk.

Let me know how you got on, feel free to comment as I always reply.

Good luck with the fix!

19 thoughts on “How to reset the Anti-Flood Device on your Electrolux Dishwasher

  • Evening!

    Thank you! I live just down the road in Farnborough and my Electrolux dishwasher broke on Saturday exactly the same thing, followed your instructions and hey presto working again. Ironically mine was 1 month out of the the 2 year warranty.
    Great detailed instructions, same as you i’m waiting to see if its a proper leak.
    just the boiler now but that wont be a diy job!
    Thanks again

    Huw

    • Hey Huw, I’m really pleased to hear it worked for someone else! Mine was 1 month out of warranty too, typical or what! Fingers crossed if we have to do it again that it’s a good long way away haha. Good luck with your boiler! M


  • Spot on worked a treat very simple fix took about 15mins soaking up water with sponges and kitchen towel and resetting float. Waited through cycle after switching back on no further water leak.


  • Wow! Just followed the instructions posted here after the dreaded beeping last night and this am and it appears to be fixed. Always wondered if I would ever find a use for those old Disney towels.
    Thanks very much!


  • Mark you’re a star. Not sure why it did it but it is under warranty so I’ll get the buggers to replace it if it keeps happening
    Happy :-)))))

  • What is the white plastic screw in front? Wouldn’t that open a drain of the water? It is accessible even without removing the metal cover. I could easily catch the water into an old towel then…

  • Thank you for this manual! Do you happen to know what is the white screw in front? Isn’t it a drain? It is accessible without removing the metal cover, and I can easily catch the water into an old towel…

  • Thank you so much – this advice worked like a dream! Money is so tight and this dishwasher issue had added to my worries.

    • I’m so glad it worked for you too! I know exactly what you mean, when you hear beeps like that all you can think is how much is it going to cost. Fingers crossed it’ll be a while yet before you need a new dishwasher 🙂

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