spiral balances

A quick learner from oakland says:
I mistakenly ordered and have received 22" series 900 spiral balances. I now realize that I should have ordered the larger 600 series. Can I use the 900 series. Also, all 7 of my windows do not stay up/open, the windows were in the house when I bought it 26 years ago. Since none of them work could they all be bad?

Thank you Allen
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Tom from SWISCO responded:
Hey, Allen. I don't believe our S900-22 will work for you. These are much smaller than the S600-22 and likely won't be as strong. As for the other windows, you could try charging the balances already installed to see if that gives them a little more life. See our video below for instructions on how you can do this.
How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
VIDEO
WATCH >
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
WATCH >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
READ >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
GUIDE
READ >
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