My garage door starts closing normally but reverses back up right before it hits the ground, every time. I already checked the sensors near the bottom of the tracks and wiped them down, no visible obstruction, and they're aligned (both lights are solid, not blinking). Track looks straight too as far as I can tell.
Could this be a spring tension issue, or something with the limit settings on the opener? Trying to figure out if this is a quick DIY fix or something I should call someone for. Any ideas welcome.