What does the grey button do?

You can use the grey button on the front of the control to:

• check the temperature setting and the actual temperature of the room (press once) ;

• boost the temperature for an hour (press and hold for 2 seconds) the LED indicator will flash red, amber, green to acknowledge the request.

For example, you want to check the temperature setting. You have pressed the grey button once and the LED indicator flashes green four times and after a two second pause it flashes red six times. This means that the smart heating control is set to 19°C, and the actual temperature of the room is 21°C.

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