Thetford 323 Series - Manuel (Page 7)

Installation and Owner’s Guide 7
Remove the Refrigerator
NOTE: A dealer or Norcold authorized service center must do
this procedure.
CAUTION: The rear of the refrigerator has sharp edges
and corners. To prevent cuts or abrasions when working
on the refrigerator, be careful and wear cut resistant
gloves.
1. Close the valve at the propane gas tank(s).
WARNING: To avoid possible gas leaks, always use
two wrenches to tighten or loosen the gas supply line
connections of the refrigerator.
2. Open the lower intake vent and remove the gas supply line
from the bulkhead fitting of the refrigerator.
3. Remove the AC power cord from the receptacle.
- On model 323 only, remove the DC fuse or remove the DC
wiring from the battery or the converter of the vehicle.
Refrigerator Maintenance
Gas flame appearance:
While in GAS operation, examine the gas flame:
- Open the lower intake vent.
- Turn the gas control to the HIGH COOL position.
CAUTION: The burner box cover can be hot. Wear
gloves to avoid burns.
- Remove the burner box cover by removing one screw.
- Using a small mirror, look at the gas flame [175] (See
Art00955).
- 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.
- Make sure the flame does not touch the inside of the
flue tube [76].
- If the flame touches the inside of the flue tube, contact
your dealer or Norcold authorized service center.
- Put the burner box cover back in the original location.
Remove and clean the burner orifice:
NOTE: Your dealer or a Norcold authorized service center must
do this procedure.
To remove and clean the burner orifice (See Art00956):
- Close the valve at the propane gas tank(s).
- Open the lower intake vent.
- Close the manual shut off valve of the refrigerator.
- Turn the gas control to the OFF positon.
CAUTION: The burner box cover can be hot. Wear
gloves to avoid burns.
- Remove the burner box cover by removing one screw.
WARNING: To avoid possible propane gas leaks,
always use two wrenches to loosen and tighten the gas
supply line at the refrigerator’s manual shut off valve.
- Remove the flare nut from the orifice assembly [77] (See
Art00956).
- Remove the orifice assembly from the burner [78]
WARNING: When cleaning, do not try to remove
the orifice [79] from the orifice adapter [80]. Removal
will damage the orifice and seal of the orifice and can
cause a propane gas leak. Leaking propane gas can
ignite or explode and result in dangerous personal injury
or death. Do not clean the orifice with a pin or other
objects.
- Clean the orifice assembly with air pressure and alcohol only.
- Using a wrench, assemble the orifice assembly to the burner.
- Assemble the flare nut to the orifice assembly.
- Tighten the flare nut by hand.
- Hold the orifice assembly securely and, using a wrench,
tighten the flare nut 1/4 revolution only.
- Examine the propane gas supply sytem for leaks.
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