The answer to 'switch sparking' is that a sparking switch is a common electrical problem that can be caused by a variety of issues. Sparking can occur when there is an issue with the electrical connections, the switch itself, or the wiring in the circuit. Some common causes include loose connections, outdated or faulty switches, and overloading the circuit.
Symptoms of a sparking switch include visible sparks, flickering lights, or a burning smell. If you experience a sparking switch, it's important to address the issue promptly to prevent further damage or potential fire hazards. In some cases, the issue can be resolved with a simple fix, such as tightening connections or replacing the switch. However, if the problem persists or you're not comfortable working with electrical systems, it's best to call a licensed electrician to diagnose and resolve the issue.