Modes Of Operation; Auto Mode; Auto Ac Operation; Auto Lp Gas Operation - Norcold N61X Service Manual

Modes of Operation

All N62X and N82X are designed for 2-way operation.

AUTO Mode

In AUTO mode, AC power is the first heat energy
source selected by the controls. If AC power is not
present, the controls shift to LP gas (propane), the
controls second priority heat energy source.

AUTO AC Operation

When AUTO mode is selected:
1. Mode of operation is indicated by the
AUTO LED.
2. The AC LED comes on as the
controls search for AC power
availability.
3. The AC LED turns off when AC
power is selected by the controls.
Mode operation is indicated by the
AUTO LED. See NOTE 1.
NOTE 1
In AUTO mode, pressing the MODE switchbutton
momentarily displays the heat energy source in use.
For example, in AUTO AC, the AC LED will come on
and stay on for approximately 10 seconds.

AUTO LP Gas Operation

In AUTO mode, the controls shift to LP gas when AC
power is not available or interrupted. The shift to AUTO
LP is as follows:
1. The AUTO LED indicates the unit is
on and operating in AUTO mode.
2. The AC LED comes on as the controls
verify AC power availability.
3. Since AC power is not present, the
controls shift to LP gas. The LP LED
comes on to signal the start of a 30
seconds trial-for ignition.
4. The controls sense the flame, turn off
the LP GAS LED leave the AUTO LED
on to indicate AUTO mode operation.

Shift from AUTO LP GAS to AUTO AC

In AUTO mode, the controls shift automatically from
AUTO LP GAS back to AUTO AC when the controls
detect that AC power has become available.
N6XX/N8XX Models

No AC Power and No Flame

When AC power is not present and a flame is not
sensed, the controls:
1. Aknowledge both faults after the 30 seconds trial-
for ignition is over.
2. Shut power to the solenoid gas valve.
AC LP GAS
3. Set "gas lock-out". See NOTE 2.
AUTO
4. Provide a visual warning by flashing alternating A
AC
LP GAS
(no AC) and F (no flame) fault codes, shown below.
AUTO
See NOTE 3.
AC
AC LP GAS
AUTO
AUTO
5. Record and store the no AC and no flame faults in
diagnostics nonvolatile memory fault history.
In AUTO mode, the controls maintain "gas lock-out"
until a full cooling cycle on AUTO AC is completed.
Turning the refrigerator OFF and back ON also clears
"gas lock-out".
N62X/N82X models with serial number 854467 and
AC
LP GAS
lower equipped with the original power board (p/n
AUTO
619353) and optical control assembly (p/n 619350) will
only display fault indicator A.
AC
LP GAS
AUTO
Troubleshooting a "F"/"no" "FL" and "A"/"no" "AC"
Faults
AC LP GAS
Use the following references to identify, troubleshoot,
AUTO
and correct an ignition failure and/or no AC faults.
n
Page 12, "F"/"no" "FL" fault codes troubleshooting
flowchart.
AC LP GAS n
Page 16, "A"/"no" "AC" fault codes troubleshooting
AUTO
flowchart.
n
Page 62, Diagnostic Mode–N62X/N82X Models,
Screen 4.
www.norcold.com/cda
LP GAS AC
AUTO
Alternating "A" and "F" Codes
NOTE 2
NOTE 3
Refrigerator Service Manual
LP GAS