What To Do If An Appliance Sparks or Smokes
Avoid touching the appliance itself, but unplug it immediately (or cut the power if it’s controlled by a switch). If there is no other way to turn off the appliance, disable the power feeding the circuit at your breaker box. Once the item has cooled off completely, have it serviced by the appropriate professional.
If the appliance catches fire, don’t try to put it out with water! If you can safely put out the fire with an extinguisher rated for electrical fires, great. If you have one shred of doubt, don’t even try. Whether you can put the fire out or not, you must immediately get everyone out of the house and call the fire department when you have reached a safe place. Why? The wiring in your walls may have also caught fire and even if you managed to put out the blazing appliance, you may have a fire smoldering inside your wall. Don’t return home until the fire department tells you that it’s safe to do so.