For Somemer 868MHz LED light is red The frequency of the remote control is: 868MHz Remote control contains battery (CR2032) TO CHANGE THE BATTERY: Only use type CR2032 battery. Pull out concealed keypad to expose battery. Take out battery and replace with new one. Always observe correct polarity (+/-) How to learn: STEP 1 Locate the radio receiver on the circuit board (Red button, or English written next to it: code or radio) STEP 2 Press learning button (A) on radio receiver STEP 3 Press required button on remote handset (B). The remote control handset will transmit the radio code to the receiver. Corresponding LED light will go out according to which channel is selected. STEP 4 Repeat procedure above to program further remote control handsets. How to learn: Open the motor controller housing, use a small screwdriver, press the button labeled CODE at the far end of the head, then the controller LED lights up, pick up the SOMMER remote control, press and hold the first button, the LED on the controller will start flicker. Do not release the button on the remote control at this time, release it after the LED on the controller goes out Then the code is done