Press the wall button and watch. If the door starts down, stops, reverses, and the opener light flashes - that’s not a malfunction, that’s a safety system doing its job badly. The photo-eyes near the floor think something is in the way.

The free fix, in order:

  1. Clear the beam. A rake handle, a trash can edge, a kid’s bike tire - anything crossing the invisible line between the two sensors stops the door. So does a cobweb thick enough, or a June bug parked on the lens.
  2. Wipe the lenses. Dust off the gravel road, cottonwood fluff in early summer - a soft cloth is the whole repair.
  3. Check the lights. Both sensors should glow steady (usually one green, one amber). A blinking or dark sensor is out of alignment - loosen the wing nut, aim it at its partner until the light steadies, snug it back down.
  4. Mind the sun. West-facing garages in Ponca City get direct evening sun straight into a sensor, which reads as a blocked beam. If the door only refuses in the evening, that’s your culprit - shade the sensor with a bit of cardboard as a test, then a sensor hood as a fix.

If the door closes when you hold the wall button down, that confirms the eyes: holding the button bypasses them. That’s a diagnostic, not a lifestyle - get the eyes aligned, because a door that only closes on a held button also skips its reversal safety on whatever’s underneath it.

When it’s not the eyes

The door closes partway, then reverses without the light show. The travel limit or close force needs adjusting, or something physical - a bent track section, a roller working loose, ice on the floor seal in January - is stopping the door at the same spot every time. Watch where it turns around; run your eye down the track at that height on both sides. A visible bend or a roller hanging out of the rail is a stop-using-it problem, not an adjustment.

The door slams the last foot. Worn springs aren’t holding their share of the weight at the bottom of travel. The door still “works,” but every slam is hammering the bottom panel and the opener - and it’s the early warning for the spring replacement coming in your future. Cheaper now than after the bang.

The door won’t even start down. Different problem - see the won’t-open checklist; most of it works in both directions.

Storm night triage

Wind shoved the door and now it won’t close - the Kay County classic. If the door is visibly crooked, off its rollers, or has a bowed panel, do not keep cycling it hoping it’ll catch. Each attempt can walk more rollers out of the track on a door that weighs as much as a rider mower.

For the night: unplug the opener, and if the door is stuck partly open, a ratchet strap from the bottom bracket area to the track base (or a car parked hard against the opening, honestly) beats nothing. Photograph everything before it’s moved - wind damage is a standard covered peril on Oklahoma homeowners policies, and adjusters want the “before.” Then call it in: won’t-close doors go to the front of our line, and the written estimate comes itemized because insurance paperwork goes easier that way.