Diagnostic Mode; Accessing The Diagnostic Mode; Changing Screens; Exiting The Diagnostic Mode - Norcold 1200 series Service Manual

DIAGNOSTIC MODE - UNITS S/N 832171 AND ABOVE
Figure 43. Optical control assembly, units with serial numbers 832171 and higher

Diagnostic Mode

The Diagnostic Mode uses ten diagnostic channels,
commonly known as "screens," to display "live"
inputs, outputs, and fault history. Each screen is
numbered. The screen number is always displayed on
the left side of the optical control assembly display.
See Figures 43 and 44.
This optical control display uses a dual 7-segment
LED module to display the screen number and
diagnostic information. Information displayed is made
up of four letters or digits that flash in an alternating
sequence. Fault history, "live" inputs, and outputs are
presented using LED segments. The diagnostic LED
segments, if present, display to the right of the screen
number. For diagnostic LED segments identification
numbers, see Figure 44.
Screen Number
2
5
Figure 44. Diagnostic LEDs segments identification.
Refrigerator Service Manual
on
1 COLD - 9 COLDEST
1
3
4
6
ON Light
7
www.norcold.com/cda
SET TEMP MODE

Accessing the Diagnostic Mode

To access the Diagnostic Mode:
1. Press and hold both the
the same time.
2. Release the and
MODE
screen displays.
3. A few seconds later,

Changing Screens

To change screens, press and hold the
until the next screen displays.

Exiting the Diagnostic Mode

To exit the Diagnostic Mode:
1. Press and hold
MODE
same time.
2. Release the and
MODE
display shows
Turning the refrigerator OFF then back ON also exits
the Diagnostic Mode.
1200XX/120X-IMXX Models
ON / OFF
and buttons at
TEMP
MODE
SET
buttons as soon as
TEMP
SET
displays.
button
MODE
and buttons at the
TEMP
SET
buttons as soon as the
TEMP
SET
.
49