Hi, I am looking for the manual for my garage opener. The previous owner didn't leave me any info. I want to change the code and don't know how. I do not know the model # but I have the numbers off of the back of the unit. It is a Craftsman 1/2 H.p. FCC ID: HBW1127 Part# 41A4315-7D Canada # 101241A Date 11/98 Could you please let me know which model it is so I can download the manual? You may e-mail me at mtimciska@hotmail.com if you have further questions. Thank you. Michaela