AEG Microwave/Oven Error code meaning

[sirocco]

I have an AEG Microwave/Oven model no KR8403101M displaying error code F134 , anyone know what this means?
It occurs about 20secs into the microwave heating cycle and shuts down machine, often machine restarts a few minutes later.

[electrofix]

this is not going to help you a lot as they dont explain it properly

Dave

[sirocco]

Thanks Dave,
Looks like poor translation.
There doesn’t seem to be any Analogue to digital converter but I guess they mean the oven voltage filter which looks like it smooths and rectifies the power board supply voltage.
AC to DC ?
I have changed the power board already so the problem is of board and most likely in the power supplied to the board from the filter.
Ill give it a go and see what happens.
Thanks again
Graham

[sirocco]

Hi Dave,
Have changed the filter, same error message.
Do you have any information as to where the Analogue to digital converter is located?
Graham

[electrofix]

i assume its part of the power board but there is no more info on it

Dave

[sirocco]

Im now getting an F131 error code ! is that pointing towards the same area of problem?
Graham

[electrofix]

[sirocco]

Thanks Dave,
Not bad considering there’s no steam in this unit.!
Whats needed is an AEG/Electrolux circuit diagram for this unit/model range but I guess they’re unavailable?
Graham

[electrofix]

all the diagram will show you it a big oblong to represent the power board etc and lots of connectors coming off it going to various components

never found them much help to be honest as it does not show connections that go through the board

Dave

[sirocco]

Sorry to be a pain Dave, I’m getting F130 error now do you know what this indicates please.
Graham

[electrofix]

you sure getting a mix of errors

Dave

[Mak85]

Hi there. I am having a very similar problem with my aeg kmk721000m microwave grill too. I get the f134 error and the microwave sometimes clicks on and off and on and off again. I have changed the transformer, hv capacitor, hv diode and the magnetron but still get this problem of random shut down. Did you ever rectify the problem yourself?

I’d really appreciate your help on this if you do have a solution.

Regards

[Mak85]

In addition to the last I have also replaced the PCB but still to no avail. I can’t think of many other parts actually left to replace other than the door switches or the hv filter? Any suggestions?

[electrofix]

they are not too helpful about this code
knew it had nothing to do with mag etc and looks like a board failure but you say you changed it

according to the tech the only analogue input is the oven probe. long shot check food probe socket for contamination
other poss analogue inputs are any other temp probes. i would check for earth leakage on them as something is upsetting the board

Dave

[Mak85]

Hi again Dave. Thanks for the reply. Do you suspect that it won’t be the voltage filter like the OP?

Where would the food probe socket be exactly?

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