channel balance, springs are too strong

A home owner says:
August 16, 2011
Hi and thanks for your help.

I previously order part S380-27 (27" Series Channel Balance), option:2640, and it fits and works like a charm.

The problem I have is that the springs are too strong, making it hard to close the window. I'd like to re-order some different springs, but need to know what option would be best. I could weigh the window if that would help.

Thanks again.
Derek
Profile picture of Tom
Tom from SWISCO responded:
August 16, 2011
Derek, unfortunately we cannot offer spring replacements for your channel balance. When a balance spring goes bad (or appears too strong) it is recommended you replace the entire balance unit.

What was the stamp on your original channel balances? If you are uncertain, please give us the weight of your window sash.
A quick learner says:
August 16, 2011
Sorry, I guess I wasn't clear -- I meant to say "I'd like to re-order some WITH different springs".

The originals were 2640s, the same as the replacement.

Sounds like I should weigh the window...
Profile picture of Tom
Tom from SWISCO responded:
August 17, 2011
Yes, let's get the window sash weight before we consider any replacements.
A quick learner says:
August 20, 2011
The window sash weight is 15.4 pounds. What's next?

Thanks!
Profile picture of Casey
Casey from SWISCO responded:
August 21, 2011
27" Series 380 with stamp option 2630 is recommended for window sashes that weight 13 through and including 19 pounds.

This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.
27" Series 380 Channel Balance
27" Series 380 Channel Balance
S380-27
$10.55
How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
WATCH >
How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
VIDEO
WATCH >
How to replace a non-tilt channel balance
How to replace a non-tilt channel balance
GUIDE
READ >
Choosing a Non-tilt Channel Balance: What Will We Need?
Choosing a Non-tilt Channel Balance: What Will We Need?
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.