Get your opener working again.

Chamberlain advises stopping use and contacting a garage-door professional if the door or a component appears damaged, or if the door sticks, binds, or moves unevenly. If you have already noticed one of these conditions, do not run another opening or closing cycle just to compare the controls.

That changes the service request: describe the door’s condition and ask for professional assessment rather than treating the problem as a remote or sensor fault. If your concern involves a spring, see the garage door spring repair guide; visible damage is still a reason to stop using the door, not to attempt a hardware repair.

If none of the stop-use conditions above is present, a simple sensor check is a reasonable next step. Chamberlain identifies obstructed or misaligned safety reversing sensors as possible reasons an opener will not close the door.

Remove objects blocking the space between the sensors. Chamberlain recommends keeping both sensors clean, securely mounted, and facing one another. Keep this check separate from a diagnosis: a clear path does not prove that the sensors or the rest of the opener system are working correctly.

If the door still will not close, report what you found when requesting service. Do not assume that a closing failure means you need new sensors or a replacement opener.

On Chamberlain wall controls equipped with a LOCK feature, enabling it can prevent remote operation while leaving the wall control able to operate the opener. If that matches the behavior you have observed, check whether your control has this feature and follow the instructions for your model to check its setting.

This is a model-specific possibility, not a rule for every brand or every remote failure. A remote that still does not work after the applicable check does not identify a particular failed part. If you notice flashing lights, note which indicator flashes and its pattern; Chamberlain’s diagnostic behavior varies by model.

Choose professional door assessment when there is damage, sticking, binding, or uneven movement. When those conditions are absent, an obstructed sensor path points to the simple check above, while wall-control operation without remote operation makes a model-specific LOCK check relevant.

If the applicable checks do not resolve the problem, or you cannot tell which instructions fit your opener, request an assessment rather than selecting a replacement part yourself. Describe the door’s condition, whether the sensor path is clear, what happened with the wall control and remote, and the opener make and model. Use observations you already have; do not operate a damaged door to complete the list.

These observations help frame the request, but they do not establish whether repair or replacement is needed. Ask the provider what fault was found and why the proposed work addresses it before authorizing either option.