What do the Vitoconnect LED displays mean?
Connectivity
gray area: Actuation range of the operating button A
current operating status
connection status with WLAN router and Viessmann server
system functions and communication status with heat generator (restart, update, error)
(*)
Pulsing: The LED darkens once per second.
Flashing: The LED lights up once per second.
Flashing (fast): The LED lights up 2 times per second.

