Hello in the round, I come directly to the thing, since yesterday the flap only sporadically opened, today garnix happens more. One hears at the start of the car, where he makes the self test of the flap only a short tinned noise, without the flap open and again, and when I go on sport mode one hears a kind of electric “bsst”, so quasi that the flap is controlled on each case, but it opens up nothing. Someone already had the same phenomenon? I have installed the bastuck system, if that is of concern. Dear greetings and thank you in advance for your answers.