Combustible instrument and electric fan

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#1
Original: German · machine translated
Hello, everybody.

after I've got through some amounts regarding the connection of the function of the electric fan and the instrument combination, I don't know any more advice: My electric fan is not working. Electrically I checked it and it works on all 3 levels (have the relays bridged). So I exclude the fan and the relay plate. The relays pulled out also work. Now the whole household is controlled by the instrument cluster (as I have already read in the threads). There's a lot of circuit boards. Have you ever been able to make out a special one that is suitable for the function of the fan, respectively. is the relay control responsible or do I have to switch the whole AI? Perhaps there are only special components that are easy to measure. I didn't want to get a complete AI at the parts dealer.

Thank you for your advice in advance

Welcome
Jörg L.
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