what we miss is a universal control computer to control those washing machines. It is very often that part that breaks and that is "so expensive that you'd better replace the whole machine".
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I'd imagine someone more familiar with electronics possibly could have figured out what specific component was wrong and replaced only that for an even smaller fraction of the cost.
It would have been a 10 minute job to change the circuit board but I only ever found an old advent on a Polish website. Apparently it's discontinued.
I refuse to believe every model needs a completely custom main board but there you have it.