Channel balance replacement

Quick Learner from California
I'm looking for a direct replacement part for the channel balance part in the attached image. It states "25 9 FV CMC 7"

By chance do you have a direct replacement part for this?
1 user uploaded image
14 Replies
Emily
Emily from SWISCO
SWISCO
Expert

Thank you for reaching out to us! We may have a replacement for this channel balance but I'm afraid I can't identify what Series you have. I would need to see clear photos of the top and bottom fittings in order to help. Can you also weigh your sash and tell us its precise weight? That will allow me to determine the proper spring strength calibration. 

Quick Learner from California
I uploaded more detailed/close-up images of both ends of the channel balance. I hope these help.

The length of the channel balance is 26" (inches)

I placed the channel balance on our scale but it didn't register any weight, I will make an effort to go to the nearby UPS store and see if they can weigh the channel balance.
5 user uploaded images
Emily
Emily from SWISCO
SWISCO
Expert

Thank you for the additional photos! This is a huge help. It looks like you have either the S380-26 or S385-26 channel balance depending on the depth of the bottom fitting. You'll need to measure as shown below to see which Series matches best.  

Comparison of the S378, S380 and S385 balance shoes.
Comparison of the S378, S380 and S385 balance shoes.

The sash is the glass panel that moves up and down, not the channel balance itself. A common bathroom scale will suffice! 

Quick Learner from California
I measured the plastic length and it's 1" which seems to be the S380 channel. When I went to order the page for this part has several options which I am not sure which one to select.
Could you please let me know how I should determine which option to select?
1 user uploaded image
Emily
Emily from SWISCO
SWISCO
Expert

For me to determine the appropriate spring strength option, I'll need you to weigh the window sash on a scale and tell me its precise weight. Your 25 9 stamp is outdated and doesn't match any of our options which is why it's important we have the weight of the sash. 

Quick Learner from California
I got the channel balance weight and it is 10.1 ounces.

Hopefully this helps you identify the option I should select.

Thanks for all your help too!
Emily
Emily from SWISCO
SWISCO
Expert

We actually need you to weigh the window sash, not the channel balance. The weight of just the balances themselves doesn't help us determine the proper strength calibration, unfortunately. 

Quick Learner from California
Oops, sorry I am not familiar with the window industry terminology, so you need the actual weight of the window itself (the window section that slides up and down), right?
Emily
Emily from SWISCO
SWISCO
Expert

Yes, that is correct! No need to apologize! I understand how tricky these terms can be. 

Quick Learner from California
Finally took off the window as I wanted the rain to stop before taking the window sash out. The window sash (the part of the window that slides up and down) weighs 30 pounds.

Hopefully this can help out in identifying the correct channel balance that I need.
Emily
Emily from SWISCO
SWISCO
Expert

Thank you very much for getting that for us. With a 30-pound sash, you have two choices: the 2560 or 2565 spring strength option. I'll go over the differences. The 2560 option can carry a sash weighing 28 to 30 pounds and the 2565 option can carry a sash weighing 30 to 33 pounds. The decision is ultimately yours! 

Quick Learner from California
Thank you for all your help, I'll be placing my order soon, btw, what's the return policy if I ordered the wrong part?
Emily
Emily from SWISCO
SWISCO
Expert

My pleasure! Our return policy can be found here

Reply to Thread
Current Photos:
Related Products
Related Videos
Related Guides