Top Window Slides Down

The balance shoe in found within the outer frame of the window and the tilt pin that needs to fit into the shoe is attached to the bottom of the window sash.
Top window slides down. A lot of the times the coil springs balancing the window need adjustment to make it tighter but sometimes they have not been shimmed correctly at the middle of the windows. Four or five years later when i would open them to insert a fan or an air conditioner the top window would slide down 6 12 inches in a few of the windows. Each double hung window in your home has four balance cartridges two per jamb liner. Is there something that can be adjusted.
About 10 years ago i had all the windows in my apartment replaced. This can result in the window sash dropping or sliding down when you raise it. To adjust a disconnected balance shoe follow these steps. If one of the balance shoes inside isn t working properly the sash will slide down when you attempt to raise it.
Slide the balance friction spring between the window frame and window. Heat and ac escapes and bugs can get in. A way to check is to measure from interior top jamb middle jamb and bottom jamb. When the top slash slides down the top of the window is left open.
One of the common problems associated with double hung windows is a dropped window or when one of the sashes becomes disconnected from a balance shoe. The top tab of the spring should sit on the top of the window jamb.