AC Unit Buzzing Noise – How to Install an Emerson SureSwitch to Stop Noise

Is your AC unit buzzing, humming, or makes a clunk sound every time it starts? Those noises are likely made by the contactor. In this video I show how to install an Emerson SureSwitch or how to replace a contactor in a condenser unit. (basically instructions on how to install an “upgraded contactor” in an air conditioner step by step). These are great if you have frequent brown-outs in your area, bugs constantly getting into the contactor contacts, a noisy contactor, or if you often replace your contactor because of voltage fluctuations.
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