Short answer
Most of the time, a garage door that won't open comes down to one of five things: a power or remote problem, blocked safety sensors, a broken spring, a snapped cable, or a failing opener. A technician doesn't guess — they check these in a specific order, cheapest and fastest first, because that's usually where the problem actually is. Here's how to tell which one you're dealing with and what fixing it involves.
What "Won't Open" Actually Looks Like
The symptom tells you a lot before anyone touches a tool. Pay attention to which of these matches your door:
- Nothing happens at all — no motor sound, no light, remote and wall button both dead.
- The opener hums or clicks but the door doesn't move.
- The door moves a few inches, then stops or reverses on its own.
- The remote does nothing, but the wall-mounted button works fine.
- The door opens fine by hand (with the opener disconnected) but not with the opener.
- The door won't move by hand either — it feels heavy, stuck, or jammed.
Each of these points toward a different stage in the checklist below.
The Order a Technician Checks
1. Power and Remote
Before touching springs or cables, a tech checks the obvious: is the opener getting power? Garage outlets are often on a GFCI circuit, and Sunrise's summer storms and afternoon downpours trip these more than homeowners expect, especially if the outlet is anywhere near an exterior wall. A tripped breaker, an unplugged cord, or dead remote batteries account for more "broken garage door" calls than people assume. If the wall button works but the remote doesn't, it's almost always batteries, a lost sync, or remote interference — a five-minute fix, not a repair.
2. Safety Sensors (Photo Eyes)
If the door hums, clicks, or the opener light blinks but the door won't move, the photo-eye sensors near the bottom of the track are the next check. These two small sensors need a clear, aligned line of sight to each other. Humidity can fog the lenses, spiderwebs and lawn debris collect on the lenses faster in warm, wet climates, and a bumped sensor bracket throws off the alignment just enough to block the signal. The fix is usually cleaning the lenses and realigning them until the indicator light goes solid — no parts needed.
3. Manual Test — Is It the Door or the Opener?
With the opener's emergency release cord pulled, a tech lifts the door by hand. If it moves smoothly and feels reasonably light, the opener itself is suspect. If it's heavy, resists, or won't budge, something mechanical is wrong with the door — most often a spring.
4. Broken or Weakened Springs
Torsion and extension springs do the heavy lifting on every garage door. When one breaks, the door becomes too heavy for the opener to lift — you'll usually hear a loud bang at some point (often when it happened) and see a visible gap in the coil. This isn't a DIY repair; torsion springs are under enormous tension and require the right bars and setup. A spring replacement typically runs in the $150–$350 range depending on spring type and door weight, and it's worth replacing both springs on a two-spring system at the same time, since the second one is usually close behind.
5. Cables
If the door hangs crooked, one side drops faster than the other, or it jerks and stops, a cable has likely slipped off its drum or snapped. Cables work in tandem with the springs, so a cable issue often shows up alongside spring wear, especially on older doors that have handled a few hurricane seasons of humidity and wind load.
6. Track Alignment
A door that binds partway up, especially after an afternoon storm or heavy wind, may be off track. Rollers can jump the track from impact, warped panels, or wood swelling from moisture — common in older doors that haven't been resealed in a while. A tech checks for gaps between the rollers and track, bent track sections, and obstructions before forcing anything back into place.
7. Opener Motor, Gears, or Limit Settings
If power, sensors, springs, and cables all check out but the door still won't move — or moves only partway before stopping — the issue is likely internal to the opener: worn drive gears, a failing motor, or limit settings that need recalibrating. Openers that run in hot garages for years, especially with South Florida's heat and humidity, tend to wear gears faster than manufacturers' estimates suggest. Depending on age, this is either a repair or a sign it's time to replace the unit.
When to Call Sunrise Overhead Door Co
If you've checked power and the sensors and the door still won't open — or it opens by hand but not with the opener — that's the point to call. A broken spring, a snapped cable, or an opener that's humming but not lifting are all jobs that involve tensioned parts or electrical components, and getting them wrong is a real injury risk. We handle Garage Door Spring Repair and Garage Door Cable Repair as same-day calls in most of Sunrise, Plantation, and the surrounding Broward County area, and if the opener itself is the problem, we can diagnose whether it needs a repair or a full Garage Door Opener Installation.
If your garage door in Sunrise, FL won't open, give Sunrise Overhead Door Co a call — we'll find the actual cause and fix it the same visit whenever we can.