Begin with the reported state
Open, closed or still moving is a factual starting point. Noise, impact and control behavior add context without becoming a diagnosis.
Inspect the relevant systems
Door movement, accessible hardware, opener and controls are considered as appropriate to the complaint. Dangerous components remain technician work.
Name the confirmed fault
The repair conversation becomes clearer when the confirmed issue is separated from every other possible concern.
Finish with an approval state
Parts and work should be shown as proposed, approved or completed, so the customer knows what happens next.