series 350 balance system for series 350 single hung window (vinyl)

Question

window purchased 2009. Is a single hung window. MI manufacture comp. referred me to you in hopes of finding part. The spring system (coiled) on left side has broken.Tried to ID part in your system unable to locate. There seems to be 2 separate parts. Top spring encased in plastic casing screwed into side. A bottom part with coiled spring on top that snaps into a plastic casing that moves up and down.

Tom · Accepted Answer

Can you show me pictures of the hardware in question? Sounds like you might need a coil balance, in which case we would definitely need to see the pivot shoe and the spring itself.