AEG lavamat L14800 – no start light. Error code E51

[x31Andy]

Would appreciate any help with following:
PNC: 914601511901
Type P6358679
Model L14800

Load up, shut door, switch power on, rotate programme selector from O and Start/Pause light illuminates for 4 seconds then goes out..
All other lights correspond to button selections but no Start/Pause light. Display indicates settings but no error code. Start/Pause is inop. No motor run or solenoid operations, just a very quiet machine!

Anyone know how to run the diagnostic test sequence? Or what I might try?
Thanks…

[x31Andy]

Re: AEG lavamat L14800 – no start light. Error code E51

Update..
With the Selector away from Off, the door latch clicks every second when the door is open and the indicator is red. Closing the door latches it. With power disconnected door releases after couple of minutes. Apply power and green start light for 4 seconds then nothing. I can select a program but it won’t start, no green light. Though my initial thought was ‘door latch’ it does seem to be working ok.

From searching web forums I’ve now learned to access AEG’s Service Test Procedure..
….With the Programme Selector in the OFF position, press and hold PREWASH and SOAK buttons and turn the Selector through each position to Short Spin. On each of the first 6 or so positions I get a error code E51 accompanied by ‘beeping’. The other settings appear ‘happy’. At Long Spin its E51 again.

On other AEG models, I read that E51 suggests insulation on motor down, or error codes E50 E51 E52 E53 E54 E55 are to do with the main wash motor open circuit.

Suggestion is to look at the carbon brushes on the motor to see if they look worn, and if so to replace.

I’m now looking for replacement brushes before I tackle this job as the machine is at my estranged wife’s and I want to get everything prepared for my next call. Cuts the hassle if you understand 🙂

Would appreciate confirmation on error E51 from some nice person with a AEG manual.. Thanks!

[Flyman]

Re: AEG lavamat L14800 – no start light. Error code E51

If it is around 4 to 8 years old it is almost definitely motor brushes. 🙂

[TheSpinDoctor]

Re: AEG lavamat L14800 – no start light. Error code E51

Hi.

Most likely the motor &/or control board as usually worn brushes cause E52 to display although do check the brushes first to eliminate them.

[x31Andy]

Re: AEG lavamat L14800 – no start light. Error code E51

Update – fixed!!!
I took the motor out and it looked pretty clean. Its a SOLE type. Removed brushes and observed there’s plenty of life left and both are wearing evenly. Commutator looks fine. Seemed good practice to remove as much brushes soot where I could and I polished the commutator against a paper cloth. The machine lives in an unheated outhouse, sat on a concrete floor. Due to the owner’s illness it hadn’t been used for two weeks before the fault was found. Given the recent weather I thought ‘damp’. I left the motor in an airing cupboard over Christmas and refitted it on my next visit. Fault was cured! Have now sited this machine on a thick rug with a plastic membrane underneath. I suspect damp was previously rising through the floor and permeating the motor during its period of inactivity. Have recommended that this machine is used twice weekly and I feel confident it has many years left!
Conclusion – motor became damp and controlling circuitry detected its change in characteristics (likely high resistance through brushes). This inhibited its start up?

[x31Andy]

Re: AEG lavamat L14800 – no start light. Error code E51

Here we are again, almost four years on and same symptoms!
I found this post of mine to remind myself of the issue but this time opted not for the awkward and time consuming task of removing the motor.. I sensed there was a damp issue again, although it’s August, this has been the summer which never was.. With the washer propped up and top removed, I left a fan heater on low setting, directed at the motor but playing through the washer. Two hours later I recovered it all and applied power.. Problem gone!!
I wonder how many brushes and motors get unnecessarily changed when really the washer needs a good drying out?

[Author]

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