Check if the appliance plugs in to the main electric socket or turn on if not plug it in or turn it on from the main. After doing this and it still not working kindly call in a professional.

This might be an electronic or mechanical fault. Kindly turnoff and unplug the appliance from the sucket if you can, most appliance will reset themselves when you plug them back to the socket and if the appliance still not working kindly call in a professional to check it.

Plug them to the manufacturer recommended voltage and study the manufacturer manual guide provided to you when you bought the appliance. You can also call in a professional to help you on proper usage of your appliance