Thetford 322 Manuel D’Utilisation

Installation and Owner’s Guide 8

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.

While in GAS operation, examine the gas flame:

-  Open the lower intake vent.

-  Turn the gas control to the HIGH COOL position.

  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 [1] (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 [2].

-  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.

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.

  The burner box cover can be hot.  Wear

gloves to avoid burns.

-  Remove the burner box cover by removing one screw.

Read and understand the following maintenance sections of this
manual.

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.

-  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.

-  Adjust if needed.

-  Make sure the thermocouple tip is clean and secure.

-  Make sure the area at the rear of the refrigerator is free from

any combustible materials, especially gasoline and other
flammable vapors and liquids.