Greg · Homeowner persona
The garage door goes down, then reverses back up
Who they are
Greg is a retired teacher who closes up the house every night before bed, garage door last.
Their home and door
A two-car garage with a belt-drive opener and safety sensors near the floor on each side of the door.
What went wrong
One night the door started down, stopped, and went straight back up, and the light on the opener kept blinking. It did the same thing every time he tried.
What they searched
- “how to fix garage door sensor”
- “green light on garage door sensor not on”
- “garage door not closing”
What they learned
- The photo-eye sensors send a beam across the opening. If anything interrupts it, the door will not close. Source: Why won’t my garage door close?
- Both sensor lights glow steady when the beam is clear. A receiving light that is off or flickering usually means a sensor is out of line or blocked. Source: Garage door won’t close and the opener light is blinking
- A thin coat of garage dust is enough to scatter the beam. Wipe both sensor lenses with a dry cloth. Source: Why won’t my garage door close?
Watch the explainer
This situationGarage door reverses or won’t close: the checks to do first →
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