We have a Craftsman Keyless Garage Door Opener that we do not know the entry code to and do not have the manual ( just bought the home) I have looked EVERYWHERE for the type of opener and any other numbers on the keypad to help me reset it and nothing works. The only set of number I have are 031B0430 and I know it is a Craftsman. Does anyone know how to reset the code so I can use this? Thanks :)

You will have to get the serial number off the main door opener on the roof of the garage. If you call the manufacturer with that serial number they will be able to help you with the code.

Look at following areas for the model number
Under Light Lens
On Back Of Transmitter