The answer to 'dimmer switch burning smell' is that a burning smell from a dimmer switch is usually caused by an overloaded or malfunctioning switch. This can be due to several common issues, such as a bad connection, a switch that's too small for the load, or a switch that's simply worn out over time.
Some key signs to look for include the switch feeling hot to the touch, flickering or dimming lights, and a distinct burning or electrical smell. If you notice any of these symptoms, it's best to shut off power to the switch immediately and call an electrician. Attempting to fix a dimmer switch that's burning or smoking yourself can be very dangerous and should be avoided.