These are along the side of my window

A home owner from Gilbert, AZ, USA says:
They no longer work. Window does not go up/down.

Home Depot says they can't help.
User submitted photos of window hardware.
A home owner from Gilbert, AZ, USA says:
Additional photos.
Profile picture of Paul
Paul from SWISCO responded:
Don't worry, we can help. It's tough to say what you have based on your pictures. The stamp only tells us how strong the spring is. Many Atrium windows use our Series 395 channel balance, so see our S395-29 with a 2840 option. I recommend carefully going over our pictures, dimensions, and information to confirm that everything matches up.
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