I have a 10 year old Liftmaster chain-driven 1/3 hp garage door opener. With help from this forum, I just successfully change both the worm and drive gear and after some trial and error, the garage door now opens and closes fine with the wall switch. However, I am now unable to program the several remotes I own which all worked fine prior to my repair. I don't think this opener has a "lock" function which I had read may be a possible cause. The opener has an amber LED that when pressed, stays solid for about 20 seconds, but then simply turns off. I actually don't remember if this LED had always been amber in the past. The LED has no reaction to the pressing of the remote buttons. Could I have damaged the main board itself in any way? Thanks in advance for your comments.

Ron