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FZ
Display
FF
Display
Mode
Comments
1
0
Open Damper
Damper will open, pause brie
fl
y, and then close.
1
1
Fan Speed Test
Cycles through each fan for 5 seconds.
1
2
100% Run Time
This mode runs the sealed system 100% of the time.
This test will automatically time out after 1 hour of run
time. A refrigerator reset may exit this mode.
1
3
Enter Pre-chill
This places the freezer in pre-chill mode essentially
issuing a “Force Prechill” command to the main control.
It will return to normal operation on its own. This
command will be ignored if the refrigerator is set to OFF/
Standby mode.
1
4
Toggle the State of
Defrost
Each time any button on the temperature board other
than four temperature adjust buttons is pressed, the
status of the FZ defrost heater will toggle.
See Note 3
.
1
5
Refrigerator Reset
Causes a soft reset to occur at both the Combined HMI
and the Main board.
1
6
Test Mode Exit
Causes a soft reset to occur at the Combined HMI
board. Note: This will not terminate test modes that the
main board is maintaining as a result of the service
diagnostics mode. To terminate test modes, Refrigerator
Reset should be used.
1
7
Degree C/F
Internal display model only. Used to set the temperature
unit of measure. The current mode is displayed on the
FF display (“
C
” of “
F
”). Use either of the FF slew keys
to adjust the mode. Press any key other than the FF
slew keys to set the unit of measure to the displayed
selection.
Note 1:
The
fi
rst two digits are numbers. The second two digits are numbers that correspond to a letter (01=a,
02=b, 03=c,...26=z). For example, 61 and 9= a software version of 61i. 41 and 10=a software version of 41j.
Note 2:
Display order: #1 = Fresh Food Thermistor, #02 = No Thermistor installed at this location, #3 = Freezer
Thermistor, #4 = Evaporator Thermistor. 05 displayed = No Thermistor installed at this location.
Note 3:
The heater will not come on if the evaporator thermistor is above 70°F.
