Garage Door Opener Repair
Chain, belt, screw-drive and wall-mount openers — diagnosed properly, including the door itself, because most opener complaints start with the door.
An opener is designed to move a balanced door, not to lift its full weight. That is why opener troubleshooting always starts with a balance test: if the door is heavy or binding, the opener is a symptom rather than the cause.
Once the door checks out, the opener itself is evaluated — drive components, logic board, motor, limit and force settings, safety sensors, wall control and remotes. Many issues come down to travel limits that have drifted, a sensor knocked out of alignment, or a worn drive gear.
Repair options are presented honestly. When a unit is well past its service life or replacement parts cost more than a new opener makes sense, that is explained rather than glossed over.
Common signs
- The motor runs but the door does not move
- The door reverses immediately after touching the floor
- The opener is loud, grinding or vibrating
- The wall button works but remotes do not
- The opener stops partway through travel
- Lights flash and the door refuses to close
Common causes
- Worn drive gear or sprocket
- Stretched chain or belt
- Travel limit or force settings out of adjustment
- Misaligned or failed photo-eye sensors
- Logic board or capacitor failure
- An unbalanced door overloading the unit
Our inspection
- Manual balance test with the opener disconnected
- Inspect rail, chain or belt tension and drive components
- Test wall control, remotes and keypad
- Check photo-eye alignment, wiring and indicator lights
- Review force and travel-limit settings
- Safety-reversal test at the floor
The process
- Confirm the fault and isolate door versus opener
- Correct door balance issues first if present
- Repair or replace failed opener components
- Reset travel limits and force settings
- Re-align and test safety sensors
- Verify reversal, remotes and keypad operation
Risks of delaying service
- Incorrect force settings defeat an important safety feature
- A straining opener can fail entirely and leave the door stuck
- Sensor faults prevent the door from closing reliably
- Ignoring noise usually means a worn gear eventually strips
Related components
- Motor and drive gear
- Chain, belt or screw rail
- Logic board
- Travel and force controls
- Photo-eye sensors
- Wall control and remotes
Where this service applies
Residential chain, belt, screw-drive and wall-mount openers on sectional doors.
Frequently asked questions
- Why does my opener run but the door stays still?
- That is often a stripped drive gear or a disengaged trolley. It can also happen when the door is jammed or a spring has broken.
- When is repair better than replacement?
- Repair usually makes sense when the unit is relatively recent and the failure is a single component. Older units with multiple failing parts are often better replaced.
- Do you work on wall-mount openers?
- Yes. Wall-mount jackshaft openers are serviced along with traditional chain, belt and screw-drive units.