Fault Codes - N7V And N8V Models; Fault Code Flash Patterns - N7V And N8V Models; Fig. 13 - Example Fault Code Flash Pattern - Norcold Polar N7V Service Manual

Fault Code Flash Patterns - N7V and N8V
Models
The user interface (controls) has the ability to recognize various
fault conditions and will display a unique error/fault code accord-
ingly.
Should none of the heat source inputs be available, the power ON/
indicator light (See Fig. 12) will be solid RED.
ALL other fault codes will be displayed using flash patterns. The
term "flash pattern" means the power ON / indicator light is turned
ON and OFF to create a numeric pattern. These flash patterns di-
rectly correspond to particular fault codes. For example, fault code
3 will be indicated by flashing the power ON / indicator light RED
3-times, followed by a 5-second pause, and then repeated as long
as the fault condition is present (See Fig. 13).
Fault Code Flash Pattern
Flash Pattern Appears Here
NORCOLD
Red, on solid.
NORCOLD
Red, flashes on one (1) time,
is off five (5) seconds, repeats.
NORCOLD
Red, flashes on two (2) times,
is off five (5) seconds, repeats.
NORCOLD
Red, flashes on three (3) times,
is off five (5) seconds, repeats.
NORCOLD
Red, flashes on four (4) times,
is off five (5) seconds, repeats.
NORCOLD
Red, flashes on five (5) times,
is off five (5) seconds, repeats.
NORCOLD
Red, flashes on eight (8) times,
is off five (5) seconds, repeats.
NORCOLD
Red, flashes on nine (9) times,
is off five (5) seconds, repeats.
NORCOLD
Red, flashes on ten (10) times,
is off five (5) seconds, repeats.
NORCOLD
Green, flashes off once every
twenty seconds.
NORCOLD
Amber, flashes off once every
twenty seconds.
NORCOLD
NORCOLD
www.norcold.com

FAULT CODES - N7V AND N8V MODELS

NOTICE

Fig. 13 - Example fault code flash pattern

Fault Code Meaning
The refrigerator tried to operate on the selected energy
source(s) with no success.
AC heater fault.
Internal control fault.
Internal control fault.
The AC heater relay stuck on.
A flame is sensed at the burner when there should be
none present.
The DC input voltage to the refrigerator is too low.
The DC input voltage to the refrigerator is too high.
Communications between the controls have been lost.
The refrigerator is operating on AC electric power. The
thermistor has been sensed as inoperable, so the tem-
perature is being controlled via backup operating system.
The refrigerator is operating on propane gas. The therm-
istor has been sensed as inoperable, so the temperature
is being controlled via a backup operating system.
The refrigerator is OFF.
17
The refrigerator is not cooling if the power
ON / indicator light is either on solid RED
or flashes on RED.
Action to Take
Refer to "Fault - Code - Solid Red Indica-
tor Light" on page 18.
Refer to "Fault Code - Flash Pattern 1"
on page 20.
Refer to "Fault Code - Flash Pattern 2"
on page 21.
Refer to "Fault Code - Flash Pattern 3"
on page 21.
Refer to "Fault Code - Flash Pattern 4"
on page 21.
Refer to "Fault Code - Flash Pattern 5"
on page 22.
Refer to "Fault Code - Flash Pattern 8"
on page 22.
Refer to "Fault Code - Flash Pattern 9"
on page 22.
Refer to "Fault Code - Flash Pattern 10"
on page 23.
Refer to "Fault Code - Thermistor Fault"
on page 24
Refer to "Fault Code - Thermistor Fault"
on page 24.
Refer to "Blank Display" on page 25.
SERVICE MANUAL