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Troubleshooting
Control Diagnostics Using LCD Screen
The LCD screen has a self-diagnosis mode that can be accessed and will assist the technician to test certain
functions of the LCD screen, dispenser, and interior fans. This mode can aid the service technician in quickly
identifying failed or improper operation of certain components and systems.
Control diagnostics using the LCD screen do not use error codes to identify problems. Instead, the LCD screen
displays a list of components or systems to be checked if a problem is detected.
To enter the self-diagnosis mode, press and hold in the
HOME
,
CRUSHED
, and
WATER
pads. The
SELF
DIAGNOSIS
screen will appear. Press
SOFTWARE VERSION
,
FACTORY TEST
, or
HMI TEST
. Select
EXIT
to exit
the self diagnosis mode.
Self Diagnosis
Description
SOFTWARE VERSION
Verifi es using latest main and HMi board software.
Test EEprom status.
FACTORY TEST
All Fans - turns on ALL interior fans (fresh food, freezer,
beverage center, and QuickFreeze
™
fans).
Calibrate - calibrates the touch screen assembly of
LCD screen
Scan Screen - Starts LCD screen quality scan. Operates
the water, crushed, cube, and lock LEDs. Opens and
closes dispenser duct door and turns dispenser light
LEDs on and off.
Back - Returns to Self Diagnosis screen.
HMI TEST
Operates all pad LEDs, light LEDs, and screen LCD.
Opens dispenser duct door. Press any pad or the glass
cradle to check switch contact.
EXIT
Returns refrigerator back to normal mode.
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