The answer to 'switch buzzing noise' is that a buzzing noise coming from an electrical switch is often caused by a loose or faulty switch. This can be due to wear and tear, improper installation, or a problem with the switch itself. The buzzing noise may be accompanied by flickering lights or intermittent power issues.
Some common causes of a buzzing switch include loose connections, a worn-out switch, or an overloaded circuit. If the switch is buzzing, it's important to address the issue promptly to prevent further damage or potential safety hazards.