ViCare Floor Heating Controller: Control elements
Installation & operating instructions
Note: Since the underfloor heating system is a fixed part of the building, the ViCare underfloor heating controller must, by law, be installed by a qualified professional. Please contact the Viessmann technical service for this.
The ViCare Floor Heating Controller doesn’t offer any operation control interface on the main unit. The available buttons and LEDs on the main unit serves the initial assembly and troubleshooting only purposes.
The interaction with the Floor Heating Controller in the ViCare Smart Climate solution is done via mobile ViCare application and Viessmann technician’s professional tools.
ViCare Floor Heating Controller: main unit’s LEDs
LED 1-6:
Each heating zone state is equipped with three-color LED (red, green, orange) with the following meaning:
LED OFF: no valve actuator is detected
LED green: valve actuator is detected and it’s powered up (the state is under adjustment)
LED orange: valve actuator is detected but not powered at the moment
LED red: Short circuit detected at valve actuator (error state)
LED 7:
LED OFF: The Floor Heating Controller is not supplied with power.
LED green: The Floor Heating Controller is connected to the ViCare Smart Climate gateway via radio
LED orange: The Floor Heating Controller has no connection to the ViCare Smart Climate gateway
LED red (flashing):
3 times at intervals The internal fuse of the ViCare floor thermostat is faulty. Notify your contractor.
- 4 times at intervals Software overcurrent detection active
When the power supply is connected to the floor thermostat, the initialization run is carried out. During the initialization run the status LED (7) flashes green for 90 seconds. The valve LEDs (1-6) light up green briefly one after the other as soon as they are activated (if the connected valve actuator is detected).

