Garage Door Won't Close: What to Check

A garage door that opens but will not close can leave the garage unsecured. Keep people clear of the opening and note exactly what happens: no movement, a brief movement followed by reversal, or stopping partway down. Different patterns call for different checks. Do not bypass a sensor or increase closing force to make the door move.

Look for an obvious obstruction

From outside the door path, look for an item crossing the sensor beam near the floor. Stored boxes, tools and yard debris can interrupt the beam without touching the door. Gently clean accessible sensor lenses if needed, without moving the brackets or reaching into moving hardware. If the door is crooked, a cable is loose or hardware is damaged, stop and request an assessment.

Record sensor lights and diagnostic patterns

A blinking or unlit sensor can indicate an alignment, wiring or power issue, but the meaning depends on the equipment. Write down the opener model and the pattern of lights or arrows. A generic claim that every flashing light means a bad sensor can lead to the wrong replacement. [Genie explains its Safe-T-Beam system](https://www.geniecompany.com/faq-s), while [Chamberlain Group publishes model-related diagnostic guidance](https://support.chamberlaingroup.com/s/article/Garage-Door-Opener-Diagnostic-Codes).

Compare the controls

Tell the repair provider whether the wall control, remote and keypad behave the same way. Also mention whether the fault is intermittent and whether it appears at the same time of day. Sunlight interference, a loose bracket or a control issue may need a different approach from a physically binding door. Avoid repeated test cycles if movement is rough or the motor strains.

A reversal is not always a sensor problem

The opener may reverse when it detects unexpected resistance. Damaged rollers, binding track, a door-system fault or travel settings can be involved. Ask for the cause of the resistance to be identified before adjustment. Safety functions should be checked after the work using the procedure for that model.

What to have ready when calling

• The Fort Wayne or nearby community address and ZIP code
• The opener make and model
• Whether the door is open, closed or partly raised
• Which controls still work
• Any diagnostic light pattern, recent impact or power interruption

Call (877) 325-9889 to discuss the closing problem and confirm availability and any diagnostic charge. Sensor repair addresses beam and wiring faults; opener repair and off-track repair address other possible causes. Confirm the diagnosis before authorizing replacement parts.