Dr Fault Code - Door Open For More Than 2 Minutes; Lamp Switch Operation; Lamp Switch Testing Procedure; N109X - Norcold N109X Series Service Manual

dr fault Code – Door open for more than 2 minutes
Before beginning this procedure make sure:
Light/thermistor connector and wire harness connector are fully engaged and locked.
■
Fault indicator displayed:
Check that the door latch
striker plate is adjusted
correctly.
Check for correct door
installation. See NOTE below.
food Compartment Lamp Switch
A reed relay switch turns the fresh food compartment
light on and off. This switch is an integral component of
the optical control display board circuitry.

Lamp Switch Operation

The lamp switch operates using a permanent magnet
located underneath the fresh food compartment door
cap. When the door is fully closed, the magnet pulls and
maintains the switch contacts open (light off). Opening
the door breaks pull the door cap away from the switch,
causing the switch contacts to close (light on).
NOtE
Always follow the instructions provided in the
Owner's Manual to change the refrigerator door
swing. The bottom door trim does not have a
magnet. Inverting the doors will required non-
approved modifications and will cause the fresh
food compartment light to remain on when the door
is closed.
Refrigerator Service Manual
1-COLD COLDEST-9
TEMP
ON
SET
NO
Striker plate
okay?
YES
Was door NO
Test lamp switch operation. See switch
swing
test procedure below.
changed?
Check for location of magnet if the door
swing was changed. See NOTE below.
figure 6. testing light switch operation.

Lamp Switch testing Procedure

1. Slide a magnetic screwdriver tip or a small magnet
on the underside of the optical control assembly
as shown in Figure 6.
2. Check the food compartment light as the
screwdriver tip is moved under the display:
n
The light should turn off when the magnetic
screwdriver tip or magnet passes under the optical
control assembly.
n
The light should turn on when the magnetic
screwdriver tip or magnet is distanced from the
underside of the optical control assembly.
3. If the light does not turn off when the magnet
passes under the optical control display, replace
the optical control display assembly. See page 39.
MODE ON-OFF
Adjust striker plate.
N109X Models
15