garage door opener repair
I have a 1/2-hp Craftsman garage door opener, don't know model, about 14 years old. The motor appears to be working but the drive sprocket attached to the chain does not turn. Is this something I can fix with a kit? Is it worth it or should I replace the entire unit? And if I do that, can I replace just the motor and re-attach the existing censors, chain, etc. or do I need to replace everything? One more question, if I can replace just the motor unit, can those be purchased separately?
Thanks for any advice.