Sash windows won't open

A quick learner from Sarasota FL says:
I have a number of windows that will not open. I have not tried to open these for many years, but now need to do so. I cannot get the window to slide up after releasing the top take-out clips. What action should I take?
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Paul from SWISCO responded:
One possible explanation is that your balances are corroded. Do you live near the ocean? Try spraying some WD-40 on the sides and down from the top of the sash in the tracks to either side. Hopefully that works!
A quick learner from Sarasota FL says:
Thanks for the helpful advice. The problem was not corrosion but paint! Painters had painted the outside of the windows shut. Removing the paint allowed the windows to open.
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