The answer to 'why is my EV charger buzzing noise' is that a buzzing or humming noise from an EV charger is often caused by electrical interference or a problem with the internal components. This can be due to issues with the power supply, wiring, or the charger itself.
Some common causes include a faulty transformer, loose connections, or interference from nearby electrical devices. The buzzing may also indicate a problem with the charger's internal circuitry or cooling system. It's important to address the issue promptly, as a persistent buzzing could lead to further damage or even a safety hazard.