BOSS BOL4 Remote Coding

Your opener contains a built-in receiver

To Set Receiver:

With a pointed object push the button shown in figure 11C. If the courtesy light is off, then it will come on and stay on for 30 seconds. If the courtesy light is on, then it will flash once and then stay on for 30 seconds. During this 30 second time period push the round button on a transmitter (figure 11B) until the courtesy light flashes twice this will indicate that the receiver has accepted the code of the transmitter. If the code is not accepted, then the courtesy light will stay on for 30 seconds, flash 4 times and then stay on for 2 1/2 minutes.

Up to 20 transmitters (including wireless keypad) can be programmed into the receiver in this way by repeating the process. Each transmitter has its own codes set at the factory. If you enter more than 20 transmitters the oldest transmitter will be dropped from memory and the new transmitter will be added.

To delete all transmitters from memory hold the receiver set button in for 5 seconds. The courtesy light will then flash 7 times, indicating all transmitters have been cleared from memory. Please see coding guide here Boss BOL4 Remote Coding