Can't remove my sash

Thanks for contacting us. It appears you have an old kind of window whose sash was not actually designed to be removed. You mention you have a 16-002. This is usually used in channel balance systems, but your kind of window often uses spiral balance systems. Can you confirm what you have? If you were to show us a picture of the balance in the side track we can confirm for you, and from there work out a solution. Thanks!

Aha, I see. I suspected as much. No, the 16-002 does not come on this window. You should have another clip entirely on the window, something like our 17-012. Am I correct? You should be able to pinch them together like you mentioned, yes, but that's only assuming that they're the problem. It may be best of we see a couple pictures of it so that we can suggest a better solution.