Norcold N300 - Refrigerator Maintenance Checklist; Refrigerator Maintenance; Gas Flame Appearance; Burner Orifice Cleaning

Installation and Owner’s Manual 8
Refrigerator Maintenance
Refrigerator Storage
Before the refrigerator is stored for an extended (seasonal)
period of time:
- Defrost and clean the interior of the refrigerator.
- Close the doors with the storage latch.
If the refrigerator is stored for an extended period of time, before
start up:
- Make sure there are no obstructions in the vents, the
ventilation air pathway, the burner, the orifice, or the flue
area.
Gas flame appearance:
While in propane gas operation, examine the appearance of the
gas flame:
- Turn the thermostat to the 5 position.
- Open the lower intake vent.
CAUTION: The burner box cover can be hot. Wear
gloves to avoid burns.
- Open the burner box door [3] and look at the gas flame [1]
(See Art00955 and Art01255).
The flame should be:
- a darker blue color on the inside of the flame and
a lighter blue color on the outside of the flame.
- a constant shape without flickering.
- Contact your dealer or Norcold authorized service
center if the flame is:
- yellow
- flickering or changing shape.
- If the flame is yellow or has an erratic and unstable
shape, contact your dealer or Norcold authorized
service center.
- Make sure the flame does not touch the inside of the
flue tube [2].
- If the flame touches the inside of the flue tube, contact
your dealer or Norcold authorized service center.
- Close the burner box door.
Remove and clean the burner orifice:
NOTE: Your dealer or Norcold authorized service center must
do this procedure.
To remove and clean the burner orifice:
- Close the valve at the gas tank(s).
- Close the manual shut off valve of the refrigerator.
- Turn the selector switch to the OFF position (
).
- Open the lower intake vent.
Read and understand the following maintenance sections of
this manual.
NOTE: Norcold is not responsible for installation, adjustment,
alteration, service, or maintenance performed by
anyone other than a qualified RV dealer or a Norcold
authorized service center.
Have a qualified RV dealer or a Norcold authorized service
center do these annual safety and maintenance checks:
- Examine the gas supply lines for leaks.
- Replace or repair if necessary.
- Make sure the propane gas pressure is 11 inches of water
column.
- Adjust if necessary.
- Make sure the combustion seal is complete and intact.
- Replace or repair it if necessary.
- Make sure the burner and the burner orifice are clean (See
Art00956).
- Clean if necessary.
- Make sure the electrode spark gap [3] is 1/8 - 3/16 inch
(See Art00955).
- Adjust if necessary.
- Make sure the AC voltage is 108 - 132 volts and the DC
voltage is 10.5 - 15.4 volts.
- Make sure the thermocouple tip is clean and secure.
- Make sure the area at the rear of the refrigerator is free of
any combustible materials, gasoline, and other flammable
vapors and liquids.
Refrigerator Maintenance Checklist