Craftsman Garage Door Opener - Remote Problems
Just moved into a new house. We inherited two craftsman garage doors (one for each door) and two three-button remotes (139.53753).
Both doors work fine from the wall button and both remotes open and close one side without a problem (so I don't think it's a battery issue). But neither works on the other door. I've tried programming the remotes as instructed on the GDO and other alternative ways I've found online, but no luck.
The GDO that I can't get working with the remotes is a Craftsman 139.53672SRT with a red (orange?) button. The GDO that is working is also a Craftsman -- I don't have the model number but it has a purple button.
Can anyone suggest anything? Is there something I should be doing with programming that I'm not? Do I need a new remote(s)?
Also, FYI, I have HomeLink buttons in my car and I can't get those to work with either GDO.