If the rollers are dirty you can try removing the door from the tracks cleaning the rollers and spraying them with a lubricant.
How to grease a sliding glass door track.
In order to prevent this from happening and becoming a problem it is important to not only get the track clean but also to lubricate the track so that it will slide easily.
This will lubricate the wheels that are inside of your door.
A sliding door relies on an upper and lower track along with rollers that keep it in place to slide smoothly back and forth.
The best way to lubricate any lock is to disassemble it and use an aerosol lubricant to flush away grime and coat the moving parts of the lock.
For vinyl door tracks use a non stick silicone lubricant.
Then slide the door all the way open vacuum the other side and scrape out the dirt and debris inside the track using a flat blade screwdriver.
It is designed to have little to no odor which means that you can use it on the side of the house on your door without being overtaken by the smell.
Place the straw attached to the lubricant into the hole and press the trigger.
To quickly clean and lubricate a sliding glass door start by vacuuming 1 side of track while the door is still closed.
However they can easily get dirty damaged or broken and cause your door to malfunction.
If the track is gummed up with dirt.
This teflon white lithium grease is manufactured by dupont and it is designed to be used both indoors and outdoors which means it may work suitably for your sliding glass door.
How to lubricate a sliding glass door track.
Look for the hole in the door over the tracks or on the inside of the door.
Sometimes patio doors become hard to open even when the track is clean.
How to lubricate a sliding door.
When a sliding door track gets gummed up and dirty it can make using the door a hassle and a pain.
Spray lubricant into the hole on the edge of the door.
Sliding glass doors use rollers to move along the track.
Your sliding glass will probably have a hole on the side.
For wood tracks use a hard wax such as candle wax or beeswax.