Jayco Greyhawk Owner's Manual page 88

be used only to maintain temperatures when the other modes are unavailable (for example;
while in transit).
During operation in the "AUTO" mode, when a higher priority energy source becomes available, the
operating controls will cease using the current energy source and will switch to the higher priority
energy source. For example, if AC electric becomes available while the refrigerator is operating in
the "AUTO LP GAS" mode, the refrigerator will switch to "AUTO AC" operation.
If an operating mode is not functional, a diagnostic code will appear and the refrigerator will attempt
to operate in a lower energy priority source. If a lower energy priority is not available, an alarm will
sound and the refrigerator will cease operation. Refer to the "Diagnostic Codes and Their Meaning"
for corrective actions.
MANUAL MODE
To operate in the "MANUAL" mode, press and hold the "MODE" button until "AUTO" disappears
and the desired operating mode is displayed. If the energy source is interrupted while operating in
the "MANUAL" mode, a diagnostic code will appear, an alarm will sound and the refrigerator will
cease operation. Refer to the "Diagnostic Codes and Their meaning" section for corrective actions.
"AUTO" AND "MANUAL" MODES - GAS OPERATION ONLY
If the gas does not ignite withing 30 seconds, which may occur on initial start-up, the refrigerator's
gas valve will automatically close and the operating controls will select an alternate energy source
("AUTO" Mode) or, "MANUAL" mode, will revert to a stand-by mode in which an alarm will
sound and code A1 will be displayed in the center window. The alarm and code will remain on until
the operating controls are turned "OFF" and then "ON" again. If the gas does not ignite after several
attempts, check the input gas supply, or consult with your dealer or a Norcold authorized service
center. A different mode of operation may be selected by pressing and holding the "MODE" button.
The refrigerator will not switch to the new operating mode until the "MODE" button is released.
BACKUP OPERATING SYSTEM (BOS)
The refrigerator's operating controls feature a Back-Up Operating System which provides a means
for the refrigerator to cool in the event of a failure with the temperature sensor. Once the "BOS"
mode is entered, the temperature sensor is ignored and the control will display Diagnostic Code C5
and will switch automatically to the "BOS" mode. This mode provides refrigeration until the
refrigerator is serviced. Although the refrigerator can operate in this mode, Norcold recommends
that the refrigerator owner seek service as soon as practical to restore normal operation.
DIAGNOSTIC CODES
The refrigerator's operating controls are equipped with a diagnostic system which alerts the user to a
problem in any mode of operation. When a problem occurs within a given mode, the operating
controls will revert to a standby mode in which an alarm will sound and a diagnostic code will be
displayed in the center control window. The alarm will sound until an alternate operating mode is
selected.
The diagnostic code will continue to be displayed until the controls are turned OFF and then back
ON. For code interpretation, see manuals written and published by the manufacturer of your
refrigerator.
80 Type C Owner's Manual