servus together, I have had a heater installed for a week, because I have an importbock and then drove straight to venlo to get the necessary software for the sz function. after about 20 minutes I drove again from the yard, had tested before whether it also works as it should. it was like that. but now I want to put it back into operation and notice that the display is activated for example at the immediate start and then automatically jumps back on and does nothing. what’s going on? for your always competent answers I already thank you now. mfg spechtv70