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Sam3453232

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    Sam3453232 reacted to TaliaB in Is It Normal for My Solar Inverter to Make a Slight Humming Noise?   
    Yeah, a faint humming or buzzing sound from the inverter is pretty normal especially when it's under load during peak solar generation.
    Inductor Noise – Inverters use high-frequency switching to convert DC to AC, and the coils inside can vibrate slightly, causing a hum.
    The fan should be running at peak solar production so the humming should not be audible when the fans are running.

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