Start with the symptom
The Opener May Not Be The Only Problem
A garage door opener moves a properly balanced door; it is not designed to overcome a broken spring, displaced cable or binding track. Before assuming the motor failed, notice exactly what responds.
Does the ceiling unit have power? Does the wall control work? Does the remote work? Does the motor run while the door stays still? Does the door start down and reverse? Each pattern points to a different group of causes.

