Replace the access doors to conceal the sash weights.
Sash window weights stuck.
Pull one of the sash cords until the sash weight hits the pulley then lower the weight about 3 inches.
Your sash windows have been freshly decorated and there is no longer room in the frame to travel lower down if you ve pulled the window forcefully it s now stuck firm.
Feed a new length of sash cord over the pulley on each side jamb and down into the wall cavity.
Set the sash partially into the window opening.
Sash cord snapped if your sash cord snapped and the sash has twisted in the frame becoming stuck firmly then you are in luck this is the easiest fix.
Prying off the window trim may or may not give you access to the weights but you won t know.
Tie the sash weights onto the new cords and drop them back inside the wall.
How to replace window sash weights accessing the weights.
For a window without access panels you also need to remove the window casing.
Access the window sash cords.