If the plug of the device becomes very warm in the DC outlet, either the DC outlet must be cleaned or the plug has not been assembled correctly.
Follow the step-by-step guide for cleaning and maintenance instructions.
After cleaning, try running the device again. If cleaning did not help, check if the plug is assembled correctly.
Never clean the cooler under running water or in dishwater.
Do not use abrasive cleaning agents or hard objects during the cleaning
as these can damage the cooler.
Occasionally clean the device interior and exterior with a damp cloth.
Make sure that the air inlet and outlet vents on the device are free of any dust and dirt, so that the heat can be released and the device is not damaged.