First, make the area safe
Keep people, pets, and vehicles clear of the opening while the door is behaving unexpectedly. Do not keep pressing the opener button to force a result, and do not stand under a door that is stopping, reversing, hanging unevenly, or making a new sound.
Match the symptom to the next safe step
The same “won’t close” description can mean different things. Note the behavior first; an observation is more useful than a guess about which part has failed.
01 · REVERSING NEAR THE FLOOR
The door starts down, then returns up
From a safe position, look for an obvious object in the door’s closing path and note whether the opener lights blink or the door reverses at the same point. Clear only an ordinary object that is safely away from the hardware. If the door still reverses, stop cycling it and request opener or repair service.
02 · SENSOR-AREA WARNING
The opener signals a sensor problem
Note whether the photo-eye area looks blocked or whether the two sensor units appear visibly disturbed. Do not adjust, remove, replace, cover, disconnect, or bypass a safety sensor. If the warning remains after an obvious obstruction is out of the way, leave the system as it is and ask for professional service.
03 · SILENT OR UNRESPONSIVE OPENER
The remote or wall control does nothing
Record which control fails and whether another control responds. You can note whether the opener’s normal indicator is present, but do not open the motor housing or disturb its wiring. Send the control symptoms with your service request so the opener can be considered separately from the door hardware.
04 · MOTOR SOUND, NO DOOR MOVEMENT
The opener clicks, hums, or runs without closing
Stop repeated attempts. A working motor can still be connected to a door that is heavy, binding, damaged, or affected by its spring or cable system. Do not force the door by hand or try to lift it to “test” the balance; describe the sound, the door position, and whether the door looks level instead.
05 · CROOKED, HEAVY, OR DAMAGED DOOR
The symptom may not be an opener problem
A door that hangs unevenly, feels suddenly heavy, shows a loose cable, or has a visible spring gap should stay still. Do not adjust, remove, replace, or reseat springs or cables, and do not operate an off-track or visibly damaged door. Use the general repair path rather than continuing opener tests.
What to include in a service request
A short, specific description helps the next conversation begin with the actual symptom. Include the New Hampshire town, whether the door is open or closed, and:
- Whether the door reverses, stops, or never starts
- What the remote, wall control, and motor each do
- Any visible obstruction, crooked movement, or new sound
- Whether the issue appeared suddenly or has been developing
When to stop troubleshooting
Stop and request professional service when the door is heavy, off track, visibly damaged, stuck in an unsafe position, or still refusing to close after an obvious path obstruction is removed. Also stop if a spring, cable, track, bracket, or panel looks displaced. Keep the area clear and do not attempt a tensioned-hardware repair from a homeowner checklist.
For opener, remote, wall-control, and safety-sensor concerns, see the garage door opener repair page. For a crooked, heavy, or damaged door, see garage door repair in New Hampshire.