2 Openers but remotes not interchangeable
I have 2 Craftsman 1/2HP openers, same model # 102-1499a but 4 years apart (2005 VS. 2009)
I installed new unit and programmed remotes & keypad w/o difficulty.
When I tried to link the older remotes to the new unit, and vice-versa, no luck.
1) Is there that much diff between the units?
2) Is there any way to get the remotes to work accross both Openers?
3) Will a "plug-in receiver" work?
Please help . . .