Explain the pattern you observed
Report whether the door refuses to close, reverses during normal use or behaves differently at certain times. Include any visible indicator and recent change near the opening. Those details help the provider consider the system without requiring repeated attempts to reproduce a fault.
Avoid diagnosing by indicator color alone
Indicator meanings and replacement components can depend on the opener model. Keep its identification ready if it is accessible safely. Ask the technician to explain the finding and why a component needs replacement before authorizing a sensor-only repair.
Keep the protective system working
Do not cover, move or bypass safety equipment to make the door operate. If the assembly is visibly damaged, keep clear and explain that condition first. The completed repair should include a model-appropriate operating check and clear guidance on any remaining issue.
Your questions
Can sunlight be blamed without an inspection?
Timing may be a useful clue, but it does not prove the cause. Report the pattern and let the equipment assessment establish the appropriate remedy.
Does every closing failure require new sensors?
No. A closing complaint can need broader operator or door assessment. Ask what evidence supports the proposed part replacement.
