Viessmann · Vitodens 200-W Boilers
The burner is in a fault state due to a lead break (broken wire) in the common supply temperature sensor or the high limit safety cutout. This prevents critical temperature readings and safety functions.
Click steps to track your progress.
Reset the appliance.
If the fault persists, contact a qualified technician to check the supply temperature sensor/high limit safety cutout for a broken lead.
Ensure the appliance has been reset correctly after the initial fault.