The annoying buzzing sound coming from the contactor in my experience, represents a weak coil. But make sure you verify coil voltage to ensure it's correct before condeming the contactor. HappyHVACing! #hvac #hvaclife #hvacr #hvacknowitall #hvacknowledge #hvacpodcast #hvacknowitallpodcast #hvaceducation #skilledtrades #torontohvac #realhvacreallife | HVAC Know It All
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