Hello municipality, last year I changed my hydraulic cylinders over the windshield with good hints from you because they were leaking. Since then I have the problem that the red button, with which the cover is opened and closed, lights red with closed cover. When opening and closing it flashes red. I was reading from a friend to the error – and there was in it that the hydraulic oil gets too hot (over 85°C). My acquaintance is a recognized professional, but since When closing, they are also no longer driven up. At other things, the cover works, how ́s it supposed to be. Is there somewhere a sensor in the ass or has something to be re-learned? Emergency like? Thanks already for helpful approaches. I am still on vacation, but as soon as I get back, I want to get there again.