We just has our garage door openor replaced with a Chamberlain Liftmaster.
Following the instructions in the manual for openers with a "rolling" code I
have tried without any success to program the Homelink for the opener. I
had similar problems with our previous opener -- a Genie -- but I suceeded
although I don't know what lucky combination I hit. I have cleared out the
previous codes as instucted and tried press the homelink button while the
learn light is on anywhere from 1 - 10 secs -- no luck after two hours. Any
suggestions anyone?