Broken coil balance

Quick Learner
I had a window made by MI Windows and Doors, Inc. and the coil balance was broken and could not hold the opened windows. The window is MI 8500 series (WxH 85in x 75in). How can I identify the right coil balance parts from yours and replace with the broken ones. Your help is greatly appreciated. Thanks, Liqun
2 Replies
Paul
Paul from SWISCO
SWISCO
Expert
The series coil you need is S190. We will need the # printed on spring. Other parts you might need are 15-180, 15-181, 15-182, and 15-186
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