tado thermostat: Wireless Receiver: heat light on or fading
tado° is requesting heat (or, on the UK receiver, hot water). The light is solid on relay systems and fades slowly in and out on digital and analog systems. When it is off, tado° is not requesting heat.
Applies to: tado° Wireless Receiver (UK and EU). What you see: a light.
What to do
tado° Help Center gives no step for this on the page cited; the meaning above is all it says.
Source
tado’s own help page, read on the date shown.
- tado° Help Center: What do the LEDs and blinking states on the Wireless Receiver mean? — tado° Wireless Receiver: the UK Programmer with Hot Water Control and the EU version. support.tado.com Checked 2026-09-29.