Atrium double hung window serie 3200

Thanks for posting. It sounds like your window needs new balances. The balances are spring-loaded mechanisms on either side of the sash that regulate its movement. There are many different kinds of window balances, and often the only way to know what you need for sure is to remove the old hardware ands how us pictures of the hardware. This blog article here will detail everything you need to know, and what information you need to tell us, to identify the balances you need.