The answer to 'troubleshooting burning smell' is that a burning smell in your electrical system can be a serious issue and should be addressed promptly. This could indicate an overheated component, a short circuit, or even a fire hazard. Some common causes include faulty wiring, overloaded circuits, worn-out electrical components, or a problem with your HVAC system.
If you notice a burning smell, immediately turn off the power to the affected area and unplug any appliances or electronics. Visually inspect the area for signs of smoke, sparks, or melted components. Do not attempt to touch or repair anything if you suspect a serious issue. Instead, call a licensed electrician right away to diagnose and fix the problem.