Appliances smell when they heat. The first use of an oven or dryer can smell like oil burning off. That fades. A smell that arrives years later, or a smell with smoke, popping, or a breaker trip, is not seasoning.
Stop the cycle. Pull the food or clothes if you can do it without putting your face in the cavity. Leave the appliance off.
New-appliance smell vs. electrical burn
Factory oil on an element is dull and short-lived. Burning plastic, a sharp electrical odor, or a smell that tracks with a buzzing noise is insulation or a failed component. When unsure, stop.
Dryers and ovens
Dryers mix heat and lint; that is why a restricted vent smells like scorching. Ovens mix heat and spilled sugar; that can smoke without being a wiring failure. Still, if the smoke is coming from the console, the back of the range, or the dryer cabinet rather than the food, it is not a spill.
Stop, do not reset
Power-cycling a burning smell to “clear the error” is how small faults become cabinet fires. Unplug if the plug is cool enough to touch. If the plug is hot, kill the breaker instead. Then book a diagnosis with that detail attached.