Norcold N109X Series User Manual

N109X Models
Refrigerator Service Manual
Sr Fault Code – Flame sense circuit failure
dc LO Fault Code – Low dc voltage
Fault indicator displayed:
Replace power board.
See page 38.
Flame sense circuit failure.
ON
TEMP
SET
MODE
ON-OFF
1-COLD COLDEST-9
Voltage
lower than
10.5 volts?
NO
Check RV 12 volt DC power supply to
the power board.
YES
See NOTE below to determine
and correct "dc LO" fault.
Check for DC voltage input
to power board terminals
12VDC and GND1.
Audible
Alarm
ON
TEMP
SET
MODE
ON-OFF
1-COLD COLDEST-9
A
l
t
e
r
n
a
t
i
n
g
D
i
s
p
l
a
y
Before beginning this procedure:
■
Make sure RV DC voltage to refrigerator is 10.5 to 15.4 volts.
■
Determine if the "dc LO" fault code displays when the converter is the source of DC power.
■
Make sure no other appliance or lighting circuit is connected to the refrigerator DC circuit.
Fault indicator displayed:
NOTE
Electronic controls operate on 12 volt DC. When an AC/DC converter is
used to supply DC power, the refrigerator circuit must be connected to the
appliance output terminals of the converter (ltered side).
If the refrigerator circuit is connected to the unltered side the AC ripple
generated by the converter may cause a "dc" "LO" fault code to display.
To troubleshoot a "dc" "LO" fault, connect a charged 12 volt automotive
battery to the power board. If the "dc" "LO" code clears, the fault was
caused by unltered DC power.
If the "dc LO" code does not clear, replace the power board (see page 38).
10

Norcold N109X Series Specifications

General

Brand	Norcold
Model	N109X Series
Category	Refrigerator
Language	English