Please do not confuse this model which has a frequency of 433.92 MHz (silver button border) with the model which has a frequency of 868.35 MHz (no button border, a grey and not a black casing). They are not compatible. If you live in a co-op, please verify that you have a master model. Only a master model can be used to program a new remote control. In order to determine if you have a master, press a button on the remote control and keep it pressed down. If the LED light blinks once before remaining lit constantly, then it is a master model. If it does not blink once but rather remains lit constantly right away, then it is a slave model and you will not be able to use it to program a new remote control.