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nest 24v relay

  1. AlexBC

    Thermostat Relay makes a loud buzzing noise when Nest thermostat opens up connection

    I have a question about why my 24v Thermostat Relay keeps on BUZZING like crazy when Nest thermostat TURNS the system on (Relay Closed), the older thermostat sometimes causes a milder buzzing, but NOT at all to this extent! This is the relay...

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