Replacing window balance

Bob from SWISCO

Apr 9, 2019 2:16 pm

Hi Arlene. This looks like either a Series 351 or Series 390 Non-Tilt Channel Balance. The only difference between these two balances is the 'depth' of the bottom nylon shoe. The Series 351 bottom nylon shoe has a depth of 1", whereas the Series 390 bottom nylon shoe has a depth of 1-1/8". Compare with your old balances and see what you think matches best.

Could you double-check the length of the metal channel? Be sure not to include the nylon attachments at either end in this measurement. I only ask because 25" would be a weird length for a balance stamped 2330 (normally the length would be 24"). Let me know what you find.

8 Replies

Home Owner from Summerfield, FL

Apr 9, 2019 2:34 pm

I see you have a selection of channel window balances and trying to figure out if one of yours will match this. The house was built in 1978 and its single glass on single hang non tilt windows. The # on this balance is 2330. The metal is 25". I'm am going to have to fix all the windows of the house that are different sizes but the main thing is to find out which channel balance will work? thank you, Arlene

5 user uploaded images

Home Owner from Summerfield, FL

Apr 10, 2019 2:30 pm

Looks like it is the series 351 since the shoe depth is 1". You are right the metal is 24" thank you! We also need this plastic piece that is on the top of window that opens and closes. I'm sending pictures showing it open and close. Thank you, Arlene

1 user uploaded image

Bob from SWISCO

Apr 11, 2019 7:44 am

Awesome! We can help with your tilt latch, too but may we see it removed from your window?

Home Owner from Summerfield, FL

Apr 19, 2019 2:53 pm

The windows do not tilt so I went ahead and order 2 balances to try which fit but it look like the plastic pieces on the top window sash hold the balance in the sash during operations. All of them are broken accept for 1 window so will be needed a bunch of them. I'm sending pictures of them on, a window without it, and a broken one off. Thank you for all your help, Arlene

5 user uploaded images

Bob from SWISCO

Apr 23, 2019 1:29 pm

Thanks for the photos. It looks like you have a Pan Am window that uses Series our S351-24 with a 2330 spring weight. The top sash guides would be our 18-187. Give it a look to be sure you agree.

Home Owner from Summerfield, FL

Apr 26, 2019 2:09 pm

Looks like that is it so I ordered all the parts this morning and should receive by the end of next week. Thank you so much!

Bob from SWISCO

Apr 26, 2019 2:11 pm

Great! Let us know if you need anything else. Thank you for considering our business, we appreciate it.