Visually inspect the door for any visible signs of damage or wear, such as dents, cracks, or loose parts.
Test the door's automatic reverse function to ensure that it stops and reverses when it encounters an obstacle.
Check the door's tracks for any obstructions or damage, and clean and lubricate them as needed.
Test the door's opener to ensure that it is functioning properly and can open and close the door smoothly.
Check the door's springs and cables for any signs of wear or damage, and replace them if necessary.
Test the door's sensors to ensure that they are functioning properly and can detect objects in the door's path.
Check the door's weather stripping and replace it if it is worn or damaged, to prevent drafts and energy loss.
Test the door's locks and latches to ensure that they are functioning properly and providing adequate security.
Inspect the door's hinges and rollers for any signs of wear or damage, and replace them if necessary.
Test the door's manual release mechanism to ensure that it can be used to open the door manually in case of a power outage or other emergency.