Aeg 40850 Dishwasher not heating water

[Unlucky day]

Reading up about this online it seems a common fault, but help required. The control unit I believe costs over £100. A call out charge another £50. toying with repair or replace if this is the case.

I have removed the pcb and underneath the relay 2 points look discoloured, although well soldered ( no expert mind)

Is there any way i can check if this is definately faulty?

I have also located the heating element in the back. not sure what to test here with the multimeter.

The plug in plastic connector has 2 metal contacts on the element body – reading 0v. Unsure of where to test for the resistance as these points have no resistance indicating dead heater element I believe. heater also has earth i believe and a strange pipe like connection which goes around the element body

photos below –

heater –

Pcb –

unknown connector on heater and wiring diagram

[martinm]

Re: Aeg 40850 Dishwasher not heating water

I need a bigger screen

[Unlucky day]

Re: Aeg 40850 Dishwasher not heating water

Sorry – about sizes of the Pics

Now resized – help appreciated

is it the pcb or is it the heater is what i am trying to test for?

[Penguin45]

Re: Aeg 40850 Dishwasher not heating water

Test meter across the heater terminals should show c.25ohms. If you get that, you can eliminate the heater.

Penguin45.

[Unlucky day]

Re: Aeg 40850 Dishwasher not heating water

Thanks

I presume the heater terminals are where the white clip connects to the heater body and are +ve and -ve and you test with power off.

just there is also an earth connection and a long hard wire connection that travels the length of the element also.

Also the pcb is out of the machine too, does this matter

Thanks again

[Penguin45]

Re: Aeg 40850 Dishwasher not heating water

Pull the connector plug out of the heater and measure thee resistance across the two terminals revealed. That’s all you have to do…..

Penguin45.

[Unlucky day]

Re: Aeg 40850 Dishwasher not heating water

No resistance measured – Guess the heater is no good.

If i replace it – any idea how to remove the black hose attached to the element. It’s a 3way hose but how do you get the clips off at the far end, access is poor and it’s too far away too reach easily.

everything else is disconnected.

[Penguin45]

Re: Aeg 40850 Dishwasher not heating water

It’s b’ awkward – those spring rings are viscious. I rather think I removed the hose on the last one I did, hooked up the heater, then put the hose back. Still a swine……

Part number for heater is 50277796-00/4 – spares@ukwhitegoods.co.uk will be able to get you one promptly.

Penguin45.

[Unlucky day]

Re: Aeg 40850 Dishwasher not heating water

Cheers penguin45

All sorted just the faulty element, removing the clips was the hardest part.

thanks again 🙂

[Author]

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