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February 8, 2005 at 12:48 pm #7835
admin
KeymasterHi,
Does anyone have any idea what the AL3 alarm code means on the AEG 64800 slimline dishwasher. The operating manual is spectacularly unhelpful, describing the error as “general”. The dishwasher usually (but not always) works fine on pre-wash, but comes up with this error when it gets to the mainwash cycle. It then leaves the dishwasher undrained, but if I then use the “pre-wash only” setting, the machine drains successfully.
any help would be appreciated …
February 8, 2005 at 12:57 pm #125378Martin
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
It’s likely the Heating Element is the fault 😉
Martin
February 8, 2005 at 2:25 pm #125379jgaraway
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
thanks for that.
Is there an easy way I can find out for sure that the problem is in the heating element before I call an engineer in?
February 8, 2005 at 2:59 pm #125380Dave_Conway
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
No easy way without a test meter really, if you’re going to call an engineer anyway, let him diagnose the problem for you, that’s what you will be paying him/her for after all 😀
Dave.
February 8, 2005 at 5:28 pm #125381jgaraway
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
Guess I was hoping to avoid an unnecessary call out charge by checking it wasn’t something I could fix myself (e.g blocked pipe) rather than something I probably need an engineer for (e.g dodgy heating element).
Looks like I’ll have to get the cheque book out after all.
thanks for your help.
February 11, 2005 at 3:11 pm #125382jgaraway
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
Just had the engineer around and he’s confirmed that the heating element has gone and a new one will cost around £70. Seems a lot but I can live with that. However, he also said that when the heating element goes it nearly always means that the motherboard has gone as well (another £200). This sounds like he’s trying to pull a fast one. What do others think? Is there a correlation between the heating element failing and the motherboard blowing?
February 11, 2005 at 3:45 pm #125383Martin
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
Well only a very slight risk it has damaged the board? You could ask that the element be replaced at the price quoted on the understanding that if the board was required then you do not wish to have the work undertaken 😕
However, if the engineer had disconnected the supply to the element, then tried it again with a test lead on the supply leads, that would have indicated to him whether or not the board was damaged…! 😕
If he didn’t do that, no worries, the good news may be that if your house supply uses a tripswitch (RCD) type consumer unit, and when it failed it tripped the electrics, there is a good chance the board will be fine 🙂 If however the machine blew the 13 amp fuse, then the board may be damaged???
Martin
February 11, 2005 at 4:40 pm #125384jgaraway
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
The fuse hasn’t gone and the machine still attempts parts of its various cycles & even completes a cold pre-wash so it seems highly unlikely that there is anything wrong with the motherboard. I would have expected nothing to work in that case.
The fact that he could have tested for a blown motherboard leads me to think that my suspicions were probably correct, so thanks for that. I’ll ask him to replace the element and hope he doesn’t put a knife through the motherboard in the process – perhaps I’m being a tad harsh and cynical.
February 11, 2005 at 4:57 pm #125385Martin
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
jgaraway wrote: perhaps I’m being a tad harsh and cynical.
Possibly you may be guilty by admission in that regard 😆 But hey! Most repairmen these days (somewhat tongue in cheek maybe) are OK. :tup:
Perhaps I should ask you to keep us posted on the progress? Assuming a happy and successful conclusion all the while 😀
Martin
March 1, 2005 at 11:47 am #125386Centurion
ParticipantSo, what was the ‘fix’. I’ve got the exact same problem.
March 1, 2005 at 1:06 pm #125387Martin
ParticipantCenturion wrote:So, what was the ‘fix’. I’ve got the exact same problem.
I guess we will never be sure 🙁 But I am 95{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} certain if you have the same fault, then the element is the likely cause.(Especially if you haven’t been putting salt in the softener) Time to call in an engineer…see our repairs@ for a local contact.
Martin
March 2, 2005 at 12:39 pm #125388jgaraway
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
Apologies for not responding – been away for a while.
Anyway, I’m still awaiting the part from the engineer which has taken forever, but AEG & the engineer seem pretty sure it’s only the heating element that’s caput. The guy comes on Friday to install it so i will update you then.
More worrying is that the AEG helpdesk said that the heating element fails quite regularly.
March 7, 2005 at 11:15 am #125389jgaraway
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
Putting in a new heating element has fixed the problem (eventually!) so if anyone else out there gets an AL3 error code during the main wash cycle then you know where to start.
Thanks to everyone on the forum who advised me on this.
October 9, 2014 at 11:12 am #125390Mr. SK
ParticipantRe: AL3 Alarm code on AEG Favorit 64800
Not sure if the topic is still current since last dialogue on this seemed to be back in 2005. My experience with this fault is that while the AL3 alarm denotes a u/s heater element, the culprit in my case was actually the heater relay located on the door mounted control board (upper RHS when facing the dishwasher). The unit is easy enough to access and what one should look for is evidence of solder depletion at the terminals of the 230V to the PCB. The relay has six soldered terminals and in my case, the 4 terminals closest to the heater lead connection all showed signs of solder depletion. This is probably due to the load/heating which this terminal experiences. I found that the relay itself was serviceable but replaced it anyway at a cost of 59CZK (about 1.5 GBP). Dishwasher now good as gold. Hope this helps those out there who are still operating this most fine appliance!
December 1, 2025 at 12:46 pm #125391stefanovic
ParticipantMr. SK wrote:Re: AL3 Alarm code on AEG Favorit 64800
Not sure if the topic is still current since last dialogue on this seemed to be back in 2005. My experience with this fault is that while the AL3 alarm denotes a u/s heater element, the culprit in my case was actually the heater relay located on the door mounted control board (upper RHS when facing the dishwasher). The unit is easy enough to access and what one should look for is evidence of solder depletion at the terminals of the 230V to the PCB. The relay has six soldered terminals and in my case, the 4 terminals closest to the heater lead connection all showed signs of solder depletion. This is probably due to the load/heating which this terminal experiences. I found that the relay itself was serviceable but replaced it anyway at a cost of 59CZK (about 1.5 GBP). Dishwasher now good as gold. Hope this helps those out there who are still operating this most fine appliance!
(summoning a dead thread)
I came across this thread the other day, as I was still experiencing ‘AL3’ alarms despite the fact that I’ve changed the heating element. I followed Mr. SK’s recommendation of having a look at the electronic board, and I could witness the same solder depletion at two terminals of the RL2 relay. I re-soldered them, and it’s working again. -
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