Hello car friends, I have a normal heater (analog) with a 1533 – functional! Now I have made a VW T91 incl. transmitter – I can also activate it.My problem: The mode cannot be switched in the remote control – every time I start ON lights it only green and the ventilation function is on. But press on heating with 2xON/OFF does not work. Does anyone have experience with it? Thank you already in advance 🙂