Hi people After I clicked through all threads and found nothing, here’s my problem: My heater cannot be activated by means of ZAB. So neither immediately nor via timer. However, I can call the menu “Standheizung” quite normal. I am in the menu “Standheizung” and then click on “Heizung” I hear a relay switch for a short time but that’s it already. Neither the green sign, nor the marking on the ZAB display reports that the standheizung I also checked with VCDS, the heater is not locked/locked and also with the function to start the heater in the “basic settings” I have no problems. Since the heater runs through the procedure quite normally, from “starting” to “full load” to the end. Also “regulatory pause” is there. Only the status “part load” does not appear. I pulled fuses both from the telestart and from the heater for a few minutes – > no remedy. Also the temperature measurements of the heater provide very plausible values. I really don’t know any more, because a month ago I could at least turn it on, then it ran for 2 minutes and switched off again. I hope you can help me. Thank you and dear greetings, Philip