Smoke or Sparking – unplug or shut off the breaker immediately.
Leaking water or overflowing - turn off the machine and shut off the water supply.
Standing water - DO NOT operate any appliance - turn off the breaker.
Smell gas (smells like rotten eggs) do not use your appliances. Exit your home and call for assistance from your gas company or 911. Shut off gas main if possible.
Appliance fire - use a fire extinguisher or baking soda to douse a flame. Flour, water or other substance can make it worse. Large fire, exit and call 911.