Thread Number: 35241
AEG OKO Lavamat 72640 drain pump 		[Down to Last]
Post# 526851   6/25/2011 at 13:34 (5,045 days old) by aeg03 (London, UK)        

Hi All,

I have a problem with my AEG 72640. I have a problem with it draining very slowly and also the jet system water is just trickling down the porthole glass.

I have taken off the filter at the front and also opened up the machine and squeezed the internal piping from the tub to the drain pump, blown into the outlet pipe exit and done 2 x boil washes but this problem remains.

I did have a blockage occure last year where the machine was very slow to drain water and the jet was again trickling. We were asked by an independent repair place to continously fill the drum and drain and this should clear it. Well this sorted out the problem but again this year it has occured and wont stop.

The water jet stream is normal for the first 2 seconds then starts to just trickle. The machine is slow at draining. I am suspecting there may be a failt with the pump in the machine and this issue is affecting the operation of the machine as it relies on the jet to provide a good performance but with low water levels. I ran a diagnostic programme on the machone which is possible by holding 2 buttons and then rotating the programmer to 95 Degree Cottons. There was an error code which said E34. I think this is linked to the water level system when the water level was not going down fast enough when draining the water.

I would like to know if there is a possible fault and is it normal for a pump to exibite this type of issue when it is failing. The fault seems so much to be a blockage, but the machine just isn't working as it should. The pump sounds normal.

Your thoughts are appreciated.




Post# 527067 , Reply# 1   6/26/2011 at 17:48 (5,044 days old) by FL1012 ()        

Im not an engineer but i'd say it's gotta be the pump that's dying. I can't imagine the pump has the capabilities to operate at different speeds so therefore it can't be the electronics telling it to pump more slowly or anything like that.

I reckon your best bet would be to get a new pump fitted providing everything else is still working.

I wouldn't keep trying to run it with the pump not working as it'll probably wreck the electronics & then it'll be alot less worth repairing.

Liam

Post# 527068 , Reply# 2   6/26/2011 at 17:51 (5,044 days old) by FL1012 ()        
Blockage.....

 It could ofcourse just be a blockage but i remember you saying a while ago that the pump made loud noises on occasions, which is why i reckon the actual pump it knackered.

If it is a blockage then i'd imagine the same outcome with damage to the electronics could be possible from continuing to use the machine with a fault.

Post# 527537 , Reply# 3   6/29/2011 at 07:28 (5,041 days old) by donprohel (I live in Munich - Germany, but I am Italian)        
Maybe not the pump

 Usually AEG machines have two pumps: one for recirculation and another for draining. Both the two pumps get the water through the drain filter.

Hence a blockage seems more likely than two pumps faulty at the same time.

Post# 527609 , Reply# 4   6/29/2011 at 13:26 (5,041 days old) by aeg03 (London, UK)        

Ill have to see if I can get someone to take it apart to clean it as I would try myself but I concerned about damaging it. Also its not the easiest to gain access at the bottom as its a sealed unit.

Its a difficult one here as yes I have had problems with loud noises with this machine but the behaviour its exhibiting is a blockage.

The machine makes a noise and has a 'vibrating feeling' in the bottom right so I thought that it was the same pump that was used for the water jet and the draining pump. Maybe I'm comnpletely wrong on that one.

Post# 527610 , Reply# 5   6/29/2011 at 13:27 (5,041 days old) by aeg03 (London, UK)        

Pump area pic 1

Post# 527611 , Reply# 6   6/29/2011 at 13:28 (5,041 days old) by aeg03 (London, UK)        

Pump area pic2. The black piping I have squeezed it to see if I can dislodge anything but its not helped :-(

Post# 527658 , Reply# 7   6/29/2011 at 15:33 (5,041 days old) by whirlpolf ()        
PNC?

 Have you got the PNC (formerly E-Number) of this machine? I might be able to get some diagrams.

Post# 527859 , Reply# 8   6/30/2011 at 12:57 (5,040 days old) by Aeg03 (London, UK)        

Hi,

The PNC number is: 914 002 408 00

L72640

Post# 527981 , Reply# 9   7/1/2011 at 04:03 (5,039 days old) by whirlpolf ()        
mail

 threre are some links and graphics in your mail ;-)
cheers
Joe


Post# 528066 , Reply# 10   7/1/2011 at 14:25 (5,039 days old) by aeg03 (London, UK)        

Thanks for the info. I have taken the machine apart. In the end I ended up opening the front filter for 2nd time and this time, the offending item was wedged in the drain pump filter. The only issue I have is the machine keeps on freezing now so I think that its on its way out, this problem with the programmer is getting progressively worse :-(

Here is the item:

Post# 528067 , Reply# 11   7/1/2011 at 14:27 (5,039 days old) by aeg03 (London, UK)        

2nd pic

Post# 528068 , Reply# 12   7/1/2011 at 14:28 (5,039 days old) by aeg03 (London, UK)        

Jet has a strong stream again.

Post# 528104 , Reply# 13   7/1/2011 at 16:14 (5,039 days old) by aeg03 (London, UK)        

Heres a video of my machine running opened up.

CLICK HERE TO GO TO aeg03's LINK
Post# 528117 , Reply# 14   7/1/2011 at 17:35 (5,039 days old) by Rolls_rapide (.)        

Gosh, it does look very Zanussi-ish inside.

The lower shock absorbers don't look up to much, do they? Not like the ones you used to get years ago.

Post# 528185 , Reply# 15   7/2/2011 at 00:35 (5,039 days old) by ronhic (Canberra, Australia)        

ronhic's profile picture

They're fairly standard modern Zanussi shocks....

 

...and they should last 9 years washing once per day...mine certainly did.
Post# 528186 , Reply# 16   7/2/2011 at 00:43 (5,039 days old) by whirlpolf ()        
intermittent programmes and diagnostic mode

 hi there,
good to see everything went well.

But after having shown an error code, the electronics need to be put back to normal. This is done by entering (and leaving) the diagnostic mode.

Press and hold the first upper two option buttons (soak and prewash) while turning the cycle knob one notch to the left (short spin).
All LEDs will come alight simultaneously. (meaning: diagnostic mode opened successfully) - it may take a while.
Levaing the diagnose routine = turn knob back to "0" (off). This should clear any former errors and put the machine back to standard programming).

(FYI: when in diagnostic mode = letting go of the two buttons and then turning the knob through all the different programmes, the LEDs will show different patterns and the display shows some abbrevations. Sorry, I do not have the pattern list for your specific model.)

Having talked to a service man: He said only in some rare instances the electronic should be replaced. Sometimes a software upgrade will do (done via the infrared port in the display). Yet, in most cases the front panel can be disassembled to gain access to the knob contacts. Use a glass brush eraser (like graphic artists have one) and gently clean the contacts and the slider arm under the knob. Invisible corrosion through moisture often results in wrong read-outs or irregular programme behavior.




Post# 528219 , Reply# 17   7/2/2011 at 06:42 (5,038 days old) by aeg03 (London, UK)        

This is what problem my AEG has at the moment. It did this again today - Only once but it really made a loud bang noise and the machine moved slightly out of its area. Scared the cr*p out of me. It seems to be doing this more and more now. The glass door has more scratch marks on it from where the drum has knocked the glass.

I have posted a video below of an Indesit washer doing the same type of thing, the only thing diffent is my AEG doesn't keep doing it, this will occur only once during the wash stage at around 98 minutes.

With regards to the blockage, it turned out to be a Colour Catcher Sheet. Id say from now on, be careful of using Colour Catcher in your washing machine.

Whirlpolf,

I did the diagnostics programme last week but there was no other error code apart from E34 which was due to the blockage in the machine.

Rolls Rapide,

I agree, the shock absorbers are very poor but these type of ones can be found in Indesits, Hoovers Candys, Bosch's etc. So very standard. They are just 'legs' don't really do anything. The tub is suspended by the springs above and these slide 'legs' just kind of keep the bottom part from moving. Perhaps its the reason why my AEG has always had a very 'wobbly drum' on spin cycles because of the suspension set up. There is plenty of life left in the suspension and all the mechanical parts, its just the electronics that are causing a problem now.



CLICK HERE TO GO TO aeg03's LINK
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