The answer to 'why is my switch power surge' is a power surge can cause your light switch to malfunction or fail. Power surges are sudden, temporary increases in the electrical current that can damage or overload electrical devices and components. This can cause your light switch to become faulty, resulting in flickering, intermittent operation, or complete failure.
Common causes of power surges include lightning strikes, utility company equipment failure, or sudden high-power demand in your home. Symptoms may include your lights flickering, switch not turning on reliably, or the switch feeling hot to the touch. If you experience a power surge, it's best to have an electrician inspect your home's electrical system to identify and resolve the issue, as DIY repairs on faulty switches can be dangerous.