I have a sliding door on one of my bathrooms. I have no idea how to remove the thing. There is a rail above and what appear to be white teflon-like rollers gripping both the inner and outer groove of the rail. I see no way to "unhook" the door so I can take it out. I need to get into the space in the wall where it tucks away so I can repair what I believe to be an air leak from the crawl space which has kind of a musty odor in the rainy season when the earth in the crawl space becomes saturated with moisture... and probably mold spores. I can feel a small air current coming from that space in the wall more near the floor than anywhere else.
Help. I am perhaps the most unhandy person on the planet