How do I winterize or store my dishwasher to prevent freezing damage?

To protect your dishwasher during summer, turn off both the water supply and power supply. If the dishwasher is left in a seasonal dwelling or could be exposed to near-freezing temperatures, have it winterized by authorized service personnel to protect against water damage from freezing lines. Ruptures caused by freezing are not covered by the warranty. (Page 17)