Removing Moisture From Sliding Glass Door

This is the simplest fix to the problem but it will only be temporary.
Removing moisture from sliding glass door. Below are some easy steps to reduce the risk of excess condensation. Troublesome condensation within the door glass often fogs that view particularly on days when humidity is high. Moisture trapped between double panes of glass typically occurs when the seal between one of the glass panes and the door frame is broken. Dehumidifiers remove moisture from the air in whatever room they are placed in.
Double pane windows have a gap between the two layers of glass. If not properly sealed or if the seal has worn the interior of the window can fog up due to the collection of moisture and condensation. The glass in your door is made up of two sometimes three layers of glass separated by a airtight aluminum extrusion and silicone sealant. The main problem with a foggy sliding glass door is that the gasket is no longer sealed.
Use a dehumidifier to maintain fog free sliding glass doors. This creates a dead air space which makes the glass more energy efficient the seal has failed and you are getting condensation between the panes. Fortunately fogging and moisture trapped in glass sliding doors can be fixed. Excess moisture on the inside of a window blocks your view and can lead to mold and mildew below and around the window or glass door.
Therefore you will need to start out by drilling a hole in the gasket for the moisture to escape. Clean the exterior bottom rails of your windows and sliding glass patio doors to remove any dirt or debris. On a dry day the moisture will.