Safety sensor wing nut replacement
Swapping the safety sensors at the base of the track is also within reach for most owners; they're held by a wing nut and a wire clip. Where we'd stop you: the drive gear and the circuit board sit inside a motor housing that's often riveted or requires the right screwdriver bit that most owners don't have on hand, and getting the force settings wrong afterward can leave the door reversing on someone standing under it.