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Over cooling drains your vehicle battery
When the ambient temperature is between 70°F (21°C)and 90°F, (32°C) keep the
temperature setting at about 40°F (4°C) to avoid an excessive drain of the battery. When
making ice, or storing frozen foods, change the temperature setting to about 25°F (-4°C).
Check the Battery Charge Level
If the DC voltage to the refrigerator/freezer is less than 10.7 volts, the cooling performance of
the refrigerator/freezer will immediately decrease. Make sure that the battery is fully charged.
A fully charged battery will have a specic gravity reading of between 1.260 and 1.280. The
battery voltage is best indicated when the refrigerator/freezer is “ON” and the battery charging
system is “OFF”. Charge the battery when the specic gravity reading is less than 1.200.
NOTE: Never use a battery charger or a rectier, etc. instead of the cigarette light adapter to
operate the refrigerator/freezer on DC power. These electrical devices cause high
ripples or surge voltages which can damage the refrigerator/freezer.
Never use a commercial inverter or converter to operate the refrigerator/freezer on AC
power. These electrical devices do not hold the constant frequency that is necessary
for the refrigerator/freezer.
Only use a “quick charger” on the vehicle battery if the power switch is turned to
“OFF”. If a “quick charger” is used on the battery while the power switch is “ON”,
damage to the refrigerator/freezer can occur.
Cooling Unit Basics
The cooling unit of your Norcold refrigerator/freezer makes heat. This heat must be removed
quickly and efciently in order for the refrigerator/freezer to have its maximum cooling
performance. When the refrigerator/freezer is in an enclosed space, the temperature within
the space will rise quickly and will reduce the cooling performance of the refrigerator/freezer.
Continued operation at high temperatures can damage the refrigerator/freezer compressor
and other components.
A free ow of air (ventilation) through the refrigerator/freezer condenser coils and around
the compressor is necessary for the refrigerator/freezer to operate correctly. While Norcold
refrigerator/freezers are made to operate in more severe conditions than typical household
refrigerator/freezers, you should not operate the refrigerator/freezer in high ambient
temperatures. This will result in poor performance and possible food spoilage.