Manual mode, Auto and manual modes - gas operation only, Backup operating system – Thetford Norcold 9183 User Manual
Page 8: Diagnostics, Diagnostics and corrective action, About your refrigerator d iag no sti c s

Manual Mode
Press and hold MODE until the AUTO LED goes out and the desired operating mode lights. Unlike AUTO mode,
the operating mode LED stays lit until an alternate mode is selected. If the energy source is interrupted in MANUAL
mode, the corresponding LED flashes, and the refrigerator stops operating until an alternate energy source is
selected or the problem is corrected. See Diagnostics for corrective actions.
AUTO and MANUAL Modes - Gas Operation Only
If gas does not ignite within 30 seconds, the refrigerator’s gas valve automatically closes and the operating
controls select an alternate energy source (AUTO Mode) or revert to a stand-by mode where the LP GAS LED
flashes. The LED flashes until the refrigerator is turned OFF and then ON. If gas does not ignite after several
attempts, check input gas supply, or consult your dealer or a Norcold authorized service center. Select a different
operating mode by pressing and holding MODE. The refrigerator does not switch to the new operating mode until
you release MODE.
Backup Operating System (BOS)
This refrigerator has a Back-Up Operating System to allow the refrigerator to cool in case of a failure within the
temperature sensing circuit. If this happens, the TEMP SET LED flashes and refrigerator switches to BOS mode.
This mode provides cooling until the refrigerator is serviced. Check refrigerator temperatures when operating in
this mode. If the temperature is too cold, adjust the thermostat to the left in single LED steps. If the temperature
is too warm, adjust the thermostat to the right in single LED steps. Allow the refrigerator to operate at the new
setting for one hour before rechecking the temperatures (frequent door opening prevents the temperatures from
stabilizing). While the refrigerator can operate in this mode, Norcold recommends that you seek service as soon
as practical to restore normal operation.
Diagnostics
When :
IT Means:
You Need to Check:
No LED"s light
Control voltage is unavailable to
display panel
10.5 to 15.4 VDC supplied to refrigerator.
Battery charging equipment or converter.
DC connection to the refrigerator.
Refrigerator’s DC fuse (3 Amp - Control Fuse)
See your dealer or a Norcold Service Center
Flashing LP GAS LED
(flash, pause, flash, pause etc.)
LP gas ignition fault
(Initial start-up)
10.5 to 15.4 VDC supplied to refrigerator.
Have gas lines been purged?
LP tank valve on?
LP tanks empty?
LP supply pressure 11" water column.
Refrigerator’s manual shut-off valve open.
See your dealer or a Norcold Service Center
Flashing AC LED
(flash, pause, flash, pause, etc.)
Fault external to refrigerator
controls
AC Mode selected but AC
power not available
Is refrigerator plugged into a functional AC outlet? Has
the vehicle fuse or circuit breaker blown?
Vehicle generator functioning (if applicable).
Refrigerator’s AC fuse (5 amp) blown?
See your dealer or a Norcold Service Center
Flashing AC LED
(flash, flash, pause, flash, flash,
pause, etc.)
Fault external to refrigerator controls
AC input voltage too low or too high
AC input to refrigerator (108 VAC to 132 VAC)
If AC problem cannot be located, see your
dealer, camp-ground administrator, or a Norcold
Service Center
Flashing BATTERY LED (flash,
flash, pause, flash, flash, pause,
etc.)
Fault external to refrigerator controls
DC input voltage too high or too low
Battery(s) Voltage
Battery charging equipment or converter
DC connection to the refrigerator
See your dealer or a Norcold Service Center
Flashing BATTERY LED
(flash, flash, flash, pause, flash,
flash, flash, pause, etc.)
Fault within refrigerator controls
Not owner serviceable;
See your dealer or a Norcold Service Center
Current TEMP SET LED flashing
(flash, pause, flash, pause, etc.)
Fault within refrigerator controls
Back-Up Operating System
Mode
Not owner serviceable;
Temporary operating mode; read Back-Up
Operating System. Seek service as soon as
practical.
See your dealer or a Norcold Service Center
About
Your
Refrigerator
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