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Refrigerator Service ManualN6XX/N8XX Models
Screens and Diagnostic Segments Information
Screen Erase Fault History
Screen 6 provides a way to erase fault history from
memory. To erase fault history:
1. Press and hold the
TEMP
SET
button when shows
on the screen.
2. Release the
TEMP
SET
button when shows on the
screen.
3. Wait five seconds.
4. Press and hold the button until show on the
screen.
Press the
MODE
button to bring up screen 7.
Screen LED Segments Reliability Check
Screen 2 diagnostics continue to confirm the reliability of
the display. After a few seconds only the ON light
displays. All other LED segments should be off. See
illustration.
Screen Diagnostic Mode Active
Screen 1 confirms that the Diagnostic Mode is active. A
few seconds after the screen number appears, all LED
segments light. See illustration.
Screen Thermistor Fin Temperature
Screen 3 displays the actual fin temperature being
sensed by the thermistor. This is not the fresh food
cabinet air temperature. The illustration shows 32°F fin
temperature as displayed in screen 3.
Screen Stored Fault History
Screen 4 displays stored fault history using lighted LED
segments. The illustration provides fault history
information and assigned LED segments . If a fault
occurred, its assigned fault history LED will be on.
Screen Stored Fault History
Screen 5 also displays stored fault history using lighted
LED segments. The illustration provides fault history
information and assigned LED segments . If a fault
occurred, its assigned fault history LED will be on.
If the screen segments do not match the ones shown in
the illustration, the fault is in the optical control
assembly. Replacing the optical control should resolve
the fault.
Press the
MODE
button to bring up screen 2.
The ON light should be the only LED displayed. If any
other LED displays, the fault is in the optical control
assembly. Replacing the optical control should resolve
the fault.
Press the
MODE
button to bring up screen 4.
Press the
MODE
button to bring up screen 5.
Press the
MODE
button to bring up screen 6.
Press the
MODE
button to bring up screen 3.
= 32°F
ON Light
Flame sense failure
1
2
4
5 6
Thermistor failure.
AC voltage low
AC voltage high
3
DC heater failed open*
DC relay stuck closed*
Screen
Number
* 3-way models
DC voltage high
AC relay stuck closed
Door ajar
1
2
3
7
4
5
6
DC voltage low
AC heater failed open
AC mode selected
but not available
Ignition fault
Screen
Number
* 3-way models