Thetford N51 Series 06/05 - 4/13/06 - Manual (Page 8)

Owner’s Manual 8
DC operation is intended only to maintain the temperature of
the refrigerator and its contents when they are already cool.
The DC operation is not intended for the initial start up and
cooling of the refrigerator. Always use either the AC operation or
propane gas operation to initially start up and cool the refrigera-
tor. The refrigerator must be cooled and the temperature must
be steady before you operate the refrigerator on DC.
Keep in mind the following guidelines for DC operation of the
refrigerator:
- Use DC operation of the refrigerator while the vehicle is in
transit.
- Do not use DC operation until the refrigerator and its
contents are completely cooled.
- Only use DC operation if the vehicle battery and alternator
are in good operating condition.
This refrigerator is made to operate on DC power while your
vehicle is “in transit” and AC power or propane gas sources are
not available. Operate the refrigerator on DC power only when
the vehicle engine is running.
For the refrigerator to operate correctly on DC power, the battery
must be maintained in a fully charged condition.
For the battery to be fully charged at all times during refrigerator
operation on DC, the vehicle engine must be running and the
alternator must be in good operating condition.
Keep in mind the following electrical precautions for DC
operation of the refrigerator:
- Good battery condition is necessary for correct DC opera-
tion.
- The capacity of the battery charging system must be more
than what is necessary for the refrigerator and other DC
appliances.
- While the vehicle engine is running, make sure the voltage
of the DC power supply leads at the refrigerator is more
than 11.5 VDC.
DC Operation Precautions (models N400.3,
N500.3, and N510.3)
DC Operation Guidelines (models N400.3,
N500.3, and N510.3)
- If the temperature is too cold, push and hold the
TEMP SET button to lower the temperature setting
by one number.
- Have the refrigerator serviced by your dealer or an Norcold
authorized Service Center as soon as possible.
- The refrigerator stops operation.
- Refer to the “Fault Codes” section of this manual.
Ignition of propane gas in either auto or manual
mode:
NOTE: On initial start up of the refrigerator, ignition of the
propane gas may not occur within 30 seconds.
If ignition of the propane gas does not occur within 30 seconds:
- The gas safety valve of the refrigerator closes.
- The refrigerator stops operation.
- Refer to the “Fault Codes“ section of this manual.
- The fault code remains until you push the ON / OFF button
two times (to stop and start the refrigerator).
- If ignition does not occur after two or three times:
- Check the gas supply line.
- Consult your local dealer or an authorized Norcold
Service Center.
- Change to manual mode and operate on AC electric.
Shut down:
- To shut down the refrigerator, push and hold the ON/OFF
button for two seconds.
Backup operating system:
This refrigerator has a backup operating system. The backup
operating system allows the refigerator 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 TEMP SET 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 dispaly.
- 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.
NOTE: If you open the door(s) too often, the tempera-
tures inside the freezer and fresh food compart-
ment do not become stable. Allow the refrigera-
tor 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
TEMP SET button to raise the temperature setting
by one number.