There are two versions of the Wireless Receiver covered here:
The Wireless Receiver - Programmer with Hot Water Control (UK)
The Wireless Receiver (EU)
The Wireless Receiver - Programmer with Hot Water Control (UK)
OFF
The Wireless Receiver is not supplied with power
Power Supply but not paired
The Wireless Receiver is supplied with power but not paired yet.
Pairing
The Wireless Receiver is in pairing mode indicated by the blinking connection LED
Normal function
When tado° is requesting heat or hot water, the heating/hot water LED will be solid on. When off, tado° is not requesting heat/hot water.
If you would like to test the heating and hot water functionality of this device, you can read how to do so in this article.
The Wireless Receiver (EU)
OFF
The Wireless Receiver is not supplied with power
Power Supply but not paired
The Wireless Receiver is supplied with power but not paired yet.
Pairing
The Wireless Receiver is in pairing mode indicated by the blinking pairing LED
Normal function
When tado° is requesting heat, the heat request LED will be solid on (for relay systems) or slowly fading in and out (for digital and analog systems). When off, tado° is not requesting heat.
More information: