Salus RT310i User Manual page 7

A detailed explanation of the meaning of the receiver LEDs can be found in the table below:
The red LED lights up
The red LED flashes
The red LED is off
The green LED lights up
The green LED is off
07 RT310i Installation Manual
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 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 receiver is disconnected from the 230V power supply or the upper switch is in
the OFF position.
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 receiver does not send a heating signal.
Description