Window cannot stay open
Hi there! I am very sorry for the long wait; we appreciate your patience during an incredibly busy season.
It sounds like you may need new balances. We're happy to help, but you will need to tilt in the window sash and remove it to expose the balances. We specifically need to see an undamaged balance removed from the window.
Thanks, Mike
Since this is a tilt window, see the 3/8" S900 or 5/8" S600. You will have to measure the outer tube to determine the best match. The length is also determined by measuring only the outer tube. For the charging tool, see the 75-006.
We also have a video tutorial regarding the replacement process.
Please let us know if you have any questions.