A detailed explanation of the meaning of the receiver LEDs can be found in the table below:
Description
The red LED lights up
The receiver is connected to the 230V power supply and is paired with a
thermostat.
The receiver can be thermostat-enabled if it is in automatic mode when the
lower switch is in the AUTO position.
The receiver can be started manually when the lower switch is in the MANUAL
position.
The red LED ashes
The receiver is in standby mode, i.e. it has not received a signal from the thermo-
stat within an hour. The set temperature on the thermostat was kept within the
hysteresis and for such a condition the thermostat does not send a heating signal,
because there is no such need.
(or)
The receiver is in pairing mode and is looking for a signal from the thermostat
(then you need to activate the pairing process in the thermostat).
(or)
The receiver was paired but lost communication with the thermostat due to out of
range or low battery in the thermostat. The receiver starts flashing after one hour
of time when it does not receive a signal from the thermostat.
The red LED is o
The receiver is disconnected from the 230V power supply or the upper switch is in
the OFF position.
The green LED lights up
In automatic mode, the receiver received a heating signal from the thermostat.
The receiver was powered up in manual mode (upper ON switch, lower MANUAL
switch).
The green LED is o The receiver does not send a heating signal.
07 RT310i Installation Manual