Discontinues "Acadia" window from Mathews Brothers, Maine from 2007. Invoice says "Intel" Balance. Upper sash is falling down and will not stay up. Pictures show connectors on both sashes and the code is on the Lower Sash channel. I do not see a code on the upper sash channel. Please advise what parts I need and how do I remove the balance to replace. What is the procedure to remove balance for upper sash. The lower sash is working properly.
Thank you
Edwin