AEG Favorit 80820W buzzing noise

[jonathantong]

(unfortunately) me again. I’m getting mightly disillusioned with my AEG since it had a new recirc pump at 23months and a new heater at 47months. Now it’s making quite a loud buzzing noise whenever the heater is on. We’ve traced the source to something on the main controller board (bottom left towards the front).

The dishwasher details are:
model: AEG F80820W
Typ: 45_1 DC1 32
PNC: 911 232 519 00
s/n: 24239006

and the main board details are:
Siemens 5WK58240
EE204 130902 G01
AEG PGP 111.500000 AZ000
AEG SNR 111.573600 AZ108
Varianten – Sachnummer
111 577 139

The main components on the PCB are (I assume) the program IC; a black plastic box with I guess the PCB transformer in it (240V->10V); a white capacitor; an orange inductor (0.9A/250V/2mH).

Is there anything user servicable on this PCB that’s the likely cause of the buzzing?

To be honest, I’m tempted to dump the thing and get a new box instead, but I’m also loath to throw away something that might be economically fixed.

[Penguin45]

Re: AEG Favorit 80820W buzzing noise

Possible transformer about to expire, more likely to be the heater relay buzzing away merrily – it’s mounted in the same area.

Regards,
Penguin45.

[jonathantong]

Re: AEG Favorit 80820W buzzing noise

The buzzing noise is definately coming from the vicinity of the PCB and not (what looks like) the big heater relay which is on the opposite side of the machine….

[Author]

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