Norcold 121X AC Series, Owner'S Manual

Owner’s Manual 7

Operating the Refrigerator Controls

AC Operation 

120 volts AC 

(108 volts min.-132 volts max.)

12 volts DC - control voltage 

(10.5 volts min. - 15.4 volts max.)

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.  

The ON / OFF button [30] starts and shuts down 

the refrigerator:

-  To turn on the refrigerator, push and release 

the ON / OFF button.

-  To turn off the refrigerator, push the ON / OFF button for one second and then release.

The SET TEMP button [32] controls the temperature adjustment of the freezer and the fresh food compartment. 

-  Push the SET TEMP button and the temperature setting (the numbers “1-9”) show in the center display [33].

-  The number “9”  is the coldest temperature setting.

-  Push and hold the SET TEMP button and the temperature setting changes.

-  Release the SET TEMP button when the temperature setting that you wish appears.

-  After ten seconds, the temperature setting will go out and only a green power ON light remains.

NOTE:  If you open the door(s) too often, the temperatures inside the freezer 

and fresh food compartment do not become 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.

Temperature switch monitor:

The refrigerator is equipped with a temperature switch [142] for overheating protection 

(See Art01851) .  A Norcold authorized service technician can determine if this switch 

has been triggered.

Art01851

142

1 COLD-9 COLDEST

              SET TEMP               MODE                ON / OFF

on

30

32

33

Art01333

31