Why Your Garage Door Won't Open — 7 Common Causes

When your garage door stops working, identifying the cause quickly saves time, money, and frustration. After 25+ years of service calls across Dallas, Richardson, Plano, and Carrollton, we've narrowed it down to seven problems that account for the vast majority of "won't open" calls.

1. Broken Torsion Spring

This is the #1 reason garage doors fail to open. Torsion springs are mounted above the door and provide the counterbalance force that makes a 200–400 lb door feel light enough for an opener to lift. When a spring breaks—often with a loud bang—the door becomes dead weight. Most homeowners hear the snap from inside the house and assume something fell in the garage.

What to do: Do not attempt to open the door with the opener or by hand. A broken spring repair requires specialized tools and training. In Dallas, spring replacement typically costs $200–$450 for a pair.

2. Dead Remote or Wall Button Batteries

It sounds simple, but dead batteries cause a surprising number of service calls. Before calling a technician, replace the battery in your remote (usually a CR2032 coin cell) and check whether the wall button inside the garage works. If the wall button works but the remote doesn't, the issue is the remote—not the opener.

3. Misaligned or Blocked Safety Sensors

Every garage door opener manufactured after 1993 has photoelectric safety sensors at the bottom of the door tracks, about 6 inches off the floor. If these sensors are misaligned, dirty, or blocked by an object, the opener will refuse to close—and in some cases, refuse to open. Look for a steady green light on one sensor and a steady amber light on the other. If either is blinking, the sensors need realignment.

4. Opener Motor Failure

Garage door openers typically last 10–15 years. When the motor fails, you may hear a humming sound without movement, or the opener may not respond at all. In Texas, heat accelerates motor wear—especially in non-insulated garages where summer temperatures can exceed 130°F. If your opener is over 10 years old, opener replacement is often more cost-effective than repair.

5. Snapped or Frayed Cables

Lift cables run from the bottom brackets of the door up to the cable drums on the torsion shaft. When a cable snaps, the door can drop suddenly or hang at an angle. Frayed cables are a warning sign—if you see strands separating, schedule a garage door cable repair in Dallas before it breaks completely.

6. Door Off Track

If the door's rollers have come out of the vertical or horizontal tracks, the door will jam partway. This can happen from impact (backing into the door), worn rollers, or debris in the track. Forcing a door that's off track will cause panel damage and potentially bend the tracks. Stop operating the door immediately and call for off-track garage door repair in Dallas.

7. Power Outage or Tripped Breaker

Dallas experiences frequent storms that can trip circuit breakers or cause brief power outages. Check your electrical panel for a tripped breaker labeled "garage" or "GFCI." Also verify that the opener is plugged in—vibration can sometimes loosen the outlet connection over time.