Hello together, 2 years ago Venlo let me unlock the heater.. always worked perfectly.. last week was my car ruz inspection..today I wanted to program the heater for the first time again..the menus behave quite normal..but the direct circuit still works the timer circuit!! If I remember correctly after programming and closing the car permanently the yellow triangle in the cockpit, right?? With me it glows up to z u Time when I switch off with key. Does anyone have advice for me?? or can the heater have been deactivated during the last inspection?? I am grateful for every tip Friendly greetings Harald