The first step is to slide open the sash. On the top of the window, you will notice a few tabs. These tabs prevent the sash from being removed from the outside.
Next, remove the sash. Ensure the window is clear of the last tab and the lock is not touching the jamb. Lift up on the sash from the bottom. Pull out and down to remove the sash. You may notice that moisture and debris is present in the window track. This is normal.
Using a putty knife, lift up and remove the track. Using a non-abrasive cloth, soap, and water, clean the track. It is important to avoid abrasive chemicals.
To reinstall, slide the track in the groove, sloping it away from you, and press down. The track will need to be snapped into place. A soft block of wood and mallet are needed for this. Place the block of wood at an angle on the track and pound the block along the length of the track to snap into place.Install the sash from the top, and slide it in from the bottom.
Next, you will need to have access to the outside of the window to check and clean the weep-hole cover and weep-hole. A putty knife and pipe cleaner are needed. Take off the weep-hole cover. Inspect to ensure the flap is moving. Use the pipe cleaner to clean the weep-hole of excess debris. Place the weep-hole cover back into the weep-hole.
Check for proper operation.
TIP: You should clean sliding windows in the morning or evening and out of direct sunlight. Direct sunlight will leave streaks by drying the cleaning solution too fast.