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by ptreacy
Sat Oct 01, 2016 10:00 am
Forum: Help and Advice
Topic: whistling damper
Replies: 1
Views: 3598

whistling damper

I have a an 8"x14" model nd rectangular damper. It is part of a 3 zone system. after the system was installed, there was a horrible whisling noise. Aparanetly the contracter "fixed" the whistle in the system by adjusting this damper to remain almost 25% open in the closed positio...