I have a Craftsman garage door opener model.
I have the user instructions but it really doesn't explain what the three buttons on the remote are for and how to program the keypad on the outside of the garage door. I have reprogrammed the car openers over and over again because someone else in the neighborhood must have the same code because the door opens and closes by itself.
Jimmy k
Expert
The 3 buttons on the remote are to set the remote to open 3 doors. One of the buttons can be programmed to operate a remote light also.
I am sending you an image showing how to program the keyless entry for your opener. Look on the motor unit to see if the LED is flashing. If it is flashing your garage door opener is receiving a strong rf signal. This signal can be coming from something in your garage or house or from somewhere in the neighborhood. Remove the batteries from your remotes and keyless entry and see if the flashing stops. Is there an old remote stored somewhere? If there is remove the battery from it. If you don't find the source here, start turning off circuit breakers for the house. Watch the led as you turn the breakers off so you know if it stops blinking which circuit the source is on.If you don't find the source of the rf you can schedule service and get a Sears technician to check the garage door opener. Sears technicians have an rf signal locater to find the source of the rf.The flashing LED might only occur when the door is opening by itself.
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