SERVICE MANUAL
13
www.norcold.com
An annual maintenance check is strongly recommended:
■
Leak test the gas lines.
■
Check combustion seal; repair or replace, if necessary (visual
check without removing the refrigerator).
■
Inspect or clean the openings of the burner tube.
■
Check/adjust the spark electrode gap to 1/8 - 3/16 inch.
■
Make sure the spark electrode tip is clean and the spark elec-
trode is securely attached to the gas train assembly.
■
Check/adjust AC and DC voltages and propane gas supply
pressure.
■
Make sure that area around the burner and controls is free of
debris, oily rags, etc.
■
Inspect the controls, piping and wiring to insure that they are in
good condition.
THESE MAINTENANCE PROCEDURES
MUST BE PERFORMED BY A QUALI-
FIED SERVICE PERSON.
NORCOLD CANNOT ACCEPT RESPON-
SIBILITY FOR REPAIRS, ADJUSTMENT,
OR MAINTENANCE PERFORMED BY
OTHER THAN A QUALIFIED DEALER
OR SERVICE CENTER.
NOTICE
Temperature Control System
Although the refrigerator is not frost-free, it is made to limit frost on
the cooling fins. At regular intervals, the temperature control system
automatically melts most of the frost from the cooling fins. The wa
-
ter from the cooling fins drains into a collection cup attached to the
back of the refrigerator. The heat of the cooling system evaporates
the water from the collection cup.
Backup Operating System
This refrigerator has a backup operating system. The backup
operating system allows the refrigerator to continue to cool if the
thermistor of the refrigerator should fail.
If a failure occurs:
■
The refrigerator automatically changes to the backup operating
system.
■
N7V and N8V models:
•
In Auto AC mode, the green power ON / indicator light will
flash OFF once every 20 seconds and repeat until the
thermistor is sensed to be operating correctly.
• In Auto Propane Gas mode, the amber power ON / indicator
light will flash OFF once every 20 seconds and repeat until
the thermistor is sensed to be operating correctly.
■
N7X and N8X models:
• In ANY mode, the temperature setting will flash ON and
OFF for 10 seconds when the control is “awake”.
■
N7LX and N8LX models:
• In ANY mode, the temperature setting will flash ON and
OFF for 10 seconds when the control is “awake”.
■
The backup operating system can over-freeze or thaw the con-
tents of the freezer and the fresh food compartment.
■
Make sure the temperatures of the freezer and the fresh
food compartment are satisfactory.
PREVENTATIVE MAINTENANCE
Gas Flame Appearance
While in propane gas operation, examine the appearance of the
gas flame:
1. Change the refrigerator controls to the coldest temperature
setting.
2. Open the lower intake vent.
The burner door can be hot. Wear gloves
to avoid burns.
3.
Open the burner door and look at the gas flame:
■ The flame should be a darker blue inside and a lighter blue
outside and should be a constant and steady shape.
■ The flame should not be yellow and should not have an er
-
ratic and unstable shape.
■ Make sure the flame does not touch the inside of the flue
tube.
4. Close the burner door.
5. Clean the openings of the burner tube as part of routine
maintenance. Follow the instructions in the “Clean the
Openings of the Burner Tube’ section of these instructions.
If the flame is not at peak performance, after the openings of
the burner tube are cleaned, contact Customer Service.
ATTENTION
!
WARNING
GENERAL INFORMATION - Electrical Components, cont’d.
