The rollers and track do most of the movement work
Rollers carry the panel. The lower track gives them a path. When either part is worn, the whole door can feel heavy.
The lock depends on the panel sitting correctly
The handle and latch meet the keeper only when the panel is aligned. That is why lock problems often connect to roller and track problems.
- Rollers
- Track
- Panel
- Frame
- Handle
- Keeper
- Weatherstripping
- Screen panel
Knowing the part name is helpful but not required
You can describe the symptom in normal words. PatioGlide can start from heavy, noisy, stuck, off-track, loose, drafty, or not latching.