|FZ Display||FF DIsplay||Mode||Comments|
|0||1||Showroom mode||When activated, a tone will sound briefly and the display will flash 1 time. The cooling system stops operation. All HMI functions will operate normally.|
|0||2||Display Combined HMI Software Version||Temperature to main controls communications test. A coded software version is displayed. Dispenser model will show two numbers. See Note 1. Internal display model will test for Pass/Fail. Should show “P”. If the format is violated, the display will read “99”.|
|0||3||Display Main Control Software Version||Temperature to dispenser communications test. A coded software version is displayed. Dispenser model will show two numbers. See Note 1. Internal display model will show “F” (no dispenser board). If the format is violated, the display will read “99”.|
|0||4||Combined HMI to Main communications||Dispenser to main controls communications test.
Dispenser model will test for Pass/Fail. Should show “P”.
Internal display will show “F” (no dispenser board).
|0||6||HMI Self Test||Illuminates all LEDs and numerical segments. FF and FZ displays will initially display “88”. Pressing temperature pads will change initial display. Remaining pads pressed will toggle the LED associated with that pad. Filter pad repeatedly pressed will toggle red, green, and amber LEDs. To exit HMI Self Test, press and hold both FF temperature pads simultaneously for 3 seconds, then release.|
|0||7||Sensor Self Test||Checks each thermistor in order and displays “P” for pass, “0” for open circuit, or “S” for shorted circuit. See Note 2.|
|1||0||Open Damper||Damper will open, pause briefl 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 first 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, #2 = Air Thermistor, #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.
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