For personal safety, this appliance must be properly grounded.
Do not, under any circumstances, cut or remove the third (ground) prong from the power cord.
The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded.
The power cord of this appliance is equipped with a 3-prong (grounding) plug which mates with a standard 3-prong grounding wall receptacle to minimize the possibility of electric shock hazard from this appliance.
Where a standard two-prong wall receptacle is encountered, it is the personal responsibility and obligation of the customer to have it replaced with a properly grounded three-prong wall receptacle.
Ensure proper ground a exists before use.

Do not use an adapter plug. Disconnecting of the power cord places undue strain on the adapter and leads to eventual failure of the adapter ground terminal.