Window won't stay up

A home owner from Atlanta, GA says:
November 13, 2023
My window had a hard time staying up and a few weeks ago I heard a loud snap and now it won't stay up at all. It appears to have an upper coil as well a coil inside the housing unit. I'm not sure how it connects or how it operates exactly. I can't find any serial or model # ?anywhere on these windows. The only marking I saw was on the coil which was 7AA


I believe the manufacturer is Gorrell windows but as I understand they went out of business.
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Paul from SWISCO responded:
November 15, 2023

Thank you for reaching out to us. It looks like your Gorrell window uses the 15-087 pivot shoe which works with the Series 180 coil springs. Based on the stamp on your old spring, I recommend the S180-7 7-pound spring. Take a look at the specifications for these parts and see what you think. 
Coil Housing Pivot
Coil Housing Pivot
15-087
$5.97
7 lbs Series 180 Coil Balance
7 lbs Series 180 Coil Balance
S180-07
$4.97
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