Why Your Garage Door Will Not Open

By the Chandler Garage Door Experts team · Updated September 2026

Start With What the Door Actually Did

Before touching anything, work out which of three things happened. The opener made no sound at all. The opener ran but the door did not move. Or the door started to move and then stopped or reversed. Those three descriptions point at completely different problems, and getting them straight saves time and money.

No Sound at All: Power and Controls

If nothing happens from the remote or the wall button, start with power. Check that the opener is plugged in, that the outlet has power and that the breaker has not tripped. Garage circuits often share a breaker with outdoor outlets, so a tripped breaker after a storm is worth ruling out.

If the wall button works and the remote does not, the problem is usually the remote. Batteries in a remote left clipped to a visor cook through an Arizona summer and fail far sooner than the same battery would indoors. A keypad on the outside wall lives an even harder life in direct sun.

The Motor Runs but the Door Stays Put

This is the classic broken spring. The opener is doing exactly what it was built to do, but the door is no longer counterbalanced, and a residential opener cannot lift an unbalanced door. You may have heard a bang earlier — sometimes hours or even days before anyone tries the door again.

A second possibility is that the trolley has disconnected from the rail because the emergency release was pulled. In that case the motor runs and the carriage moves but the door is simply not attached. Do not attempt to reconnect it while the door is raised. Either way, stop pressing the button: repeated attempts add wear and can damage the opener's gears.

The Door Moves and Then Reverses

A door that starts down and comes straight back up is usually reacting to its safety sensors. The two photo eyes sit a few inches above the floor at either side of the opening, and anything that breaks the beam — a bin, a bike wheel, a bag, even heavy dust on the lens after a storm — will send the door back up. Bright afternoon sun shining directly into a sensor can do the same.

Check the indicator lights on both sensors, wipe the lenses gently and make sure nothing has been nudged out of alignment. If they look fine and the door still reverses, the cause is more likely a travel or force setting, or a door that is binding somewhere in its run. That is a job for an inspection rather than trial and error.

Track, Roller and Dust Problems

If the door judders, catches at the same point every time or has started to hang slightly crooked, look at the tracks from a safe distance. A roller out of its track, a visible kink in the steel or a cable hanging loose all mean the door should not be operated again until it has been checked.

Monsoon dust is a real contributor here. Grit collects in the tracks between July and September, especially on garages facing open ground, and it works away at rollers until one of them starts to bind. What looks like a sudden failure is often months of quiet wear finishing its work.

The Emergency Release Rope

The red rope disconnects the door from the opener so it can be moved by hand. It is genuinely useful when the door is fully closed and the springs are intact. It is dangerous when the door is open or the springs have failed, because pulling it can drop the full weight of the door.

When a Car Is Shut Inside

This is the most common reason people need help urgently, and it is worth saying clearly when you call. Do not try to force the door up with the car's help, a lever or several people lifting. A door under failed spring tension does not behave predictably, and a partly raised door that slips is exactly the situation that causes injuries.

If there is a side door into the garage, use it. If the only way in is the main door, say so when you arrange the visit so the timing can be treated accordingly.

Doors That Will Not Open Around Chandler

The pattern we see in Chandler is fairly consistent: a house built during the 1990s or 2000s, a garage used as the family's main entrance, and a door that has quietly worked through its original springs and rollers. Add a summer of afternoon heat on the opener and a monsoon season of dust in the tracks and the failure is rarely a surprise once you look at the whole door.

The same holds across the communities nearby. For local appointment details in the town just east of us, see garage door repair in Gilbert, or check the service areas page for everywhere else.

Arrange an Inspection

If you have ruled out power and the remote and the door still will not open, the next step is an inspection rather than another press of the button. Chandler Garage Door Experts checks the springs, cables, rollers and opener together — see spring repair and opener repair for what each involves, or request a visit and describe what the door did.