Temperature Control System; Backup Operating System; Temperature Switch Monitor; Operating The Refrigerator Controls - Norcold 121X series Owner's Manual

Temperature control system:

Although the refrigerator is not frost -free, it is made to limit frost on the cooling fins. At regular intervals, the temperature control system
automatically melts most of the frost from the cooling fins. The water from the cooling fins drains into a collection cup that is attached
to the back of the refrigerator. The heat of the cooling system evaporates the water from the collection cup.

Backup operating system:

This refrigerator has a backup operating system. The backup operating system allows the refrigerator to continue to cool if the
temperature sensor of the refrigerator should fail.
If this failure occurs:
- The refrigerator automatically changes to the backup operating system.
- When you push the SET TEMP button, the temperature setting flashes in the center display for ten seconds.
- After the temperature setting flashes, the mode of operation appears in the center display.
- The backup operating system can overfreeze or thaw the contents of the freezer and the fresh food compartment.
- Make sure the temperatures of the freezer and the fresh food compartment are satisfactory.
If you open the door(s) too often, the temperatures inside the freezer and fresh food compartment do not become
NOTICE
stable. Allow the refrigerator to operate for about one hour after each adjustment change before you examine the
contents. The number "9" is the coldest temperature setting.
- If the temperature is too warm, push and hold the SET TEMP button to raise the temperature setting by one number.
- If the temperature is too cold, push and hold the SET TEMP button to lower
the temperature setting by one number.
- Have the refrigerator serviced by your dealer or a Norcold authorized Service Center
as soon as possible.
emperature switch monitor:
T
The refrigerator is equipped with a temperature switch [142] for overheating protection
(See Art02243) . A Norcold authorized service technician can determine if this switch has
been triggered.

Operating the Refrigerator Controls

AC Operation
Propane gas operation:
The refrigerator operates on these energy sources. Operation out of these limits can damage the refrigerator electrical components
and will void the warranty.

Control panel:

The refrigerator control panel (See Art01333) is between the freezer compartment and the fresh food compartment. To maintain the
operating control functions of the refrigerator, a 12 volt DC power supply is necessary. The refrigerator receives DC power from the 12
volt system of the vehicle; either an auxillary battery, a converter, or the vehicle engine battery.
120 volts AC
Propane gas
12 volts DC - control voltage
(108 volts min.-132 volts max.)
(11 inches water column pressure)
(10.5 volts min. - 15.4 volts max.)
142
Art02243
Owner's Manual 7