Describe the symptom without forcing operation
Tell us whether the door reverses, remains open or behaves differently at particular times. Note any indicator you can see safely. Sensor problems are one possible cause of a closing complaint, so the service request should leave room to assess the rest of the operator.
Use the correct replacement system
Replacement components need to match the equipment. Keep the opener model and any previous repair record available for the appointment. Ask the proposal to identify the parts being changed and any related work, rather than accepting an unspecified universal sensor replacement.
Keep protective functions intact
A service visit should preserve the protective system and include an explanation of how normal operation was checked. Do not request a bypass as a permanent solution. If the door is visibly crooked or damaged, explain that first so the visit is not limited to electronics.
Read light colors in the correct model context
Chamberlain Group identifies an amber sending light and green receiving light on its 041-0136 and 41A5034 sensor pairs. Its older 41A4373A pair uses green lights on both sides. Record the sensor or opener model and whether each light is steady, flickering or dark. Do not infer a fault from two different colors, or apply one model’s color meanings to every system.
Your questions
Should I keep holding a control to make the door close?
Do not work around a recurring protective response. Keep the opening clear and arrange assessment instead of treating forced operation as a repair.
Can a remote fault look like a sensor fault?
Different complaints can overlap. Report what the wall control and remote did during normal use without repeatedly cycling a door that appears unsafe.
Should both garage door sensor lights be green?
It depends on the sensor model. Chamberlain Group’s 041-0136 and 41A5034 pairs use an amber sender and green receiver; its older 41A4373A pair has two green lights. Consult the specific equipment documentation. Color alone does not establish that the entire system is safe.
