What important safety precautions should I follow to avoid electric shock?

Always use a grounded electrical outlet when connecting the product to a power source, and check with a qualified electrician if you are unsure whether the outlet is grounded. Do not touch the contacts on any sockets on the product, replace damaged cords immediately, and unplug the product from wall outlets before cleaning. You should also never install or use the product near water or when you are wet. (Page 13)