On the main unit there is a reset button. Use an opened paper clip to click the reset button. Wait about a minute for the transmitter to send to main unit. Make sure that the transmitter and the unit are set for the same channel ie. both at one. The main unit will show waves for accepting the signal.
unable to set the temperature
To set the temperature on an L.L.Bean Thermo Clock OHRC9, press the "Up" or "Down" button to adjust the temperature setting to your desired level. The display should update to show the new temperature setting. Refer to the user manual for specific instructions tailored to your model.