We have many windows that have issues in this house that was built in 1993
Paul from SWISCO responded:
October 21, 2015
I'm not sure exactly what you need, but it looks like your top sash guides are broken. See our 18-124P. This looks like a match. It also appears that your balance is broken, so see our S380-37 with a 3640 option. Let me know what you think!