broken tilt shoe

A quick learner from Minnetrista, Minnesota says:
The hook on the tilt shoe that holds down the spring loaded balancer has broken on multiple windows in our home. Once it snaps, it shoots the balancer straight through the window casing. This happens when they are closed, locked, and no one is touching/near them.
Is this something that could be covered under a warranty? If so, how do we find out who installed the windows/who the manufacturer is? The only id I can find (no etchings or serials) is the little white sticker.
Our home is 9 years old, we are the 3rd owners.

If not under warranty, is there a way to repair the shoe, tilt locks, and window casing?
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
The sticker tells me the window is a Series 2900, but that doesn't necessarily narrow it down. Silverline manufacturer made a Series 2900 window, but your tilt latches look like our 26-243 and 26-244 (please compare dimensions to confirm), two parts that Silverline didn't use.

For the balance, see our Series 765 to start out. I think this could be a match. In regards to the warranty, I don't think it is transferable to a new owner, but you would need to contact the original maker of the window to be sure.
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