13
a year, but should only be done by a qualified serviceman
who is familiar with LP gas systems and refrigerators.
D. The LP gas pressure should be checked and the main
regulator readjusted if pressure is incorrect. The correct
operating pressure is 11 inches of water column. The
correct place to take the LP gas pressure is at the test
port just ahead of the burner jet. (See FIG. 11).
E. Inspect the flue baffle. It should be reasonably clean and
free of soot. Heavy soot formation indicates improper
functioning of the burner. The flue and burner both require
cleaning in the following manner:
1) Unplug the refrigerator power cord from the 120 volt
AC outlet (see FIG. 6).
2) Disconnect or shut off the 12 volt power to the
refrigerator.
3) Turn manual shutoff valve to OFF. (See FIG. 6 & 11).
4) Remove cover from the burner housing. (See FIG . 6).
5) Disconnect the wire from the high voltage electrode.
6) Remove the burner mounting screws and remove the
burner assembly.
7) Remove the flue cap from top of flue tube and lift out
the wire and spiral baffle. Clean the flue from the top
using a flue brush. Blowing compressed air into the
flue will not properly clean soot and scale out of the
flue tube. Replace spiral baffle and flue cap.
8) Clean burner tube with a brush. Blow out burner with
compressed air.
9) Before removing burner jet, clean burner area of soot
and scale that fell out of flue tube. Remove the burner
jet. Soak the jet in wood alcohol and blow it out with
compressed air. Reinstall and tighten burner jet.
DO NOT use a wire or pin when cleaning the burner jet
as damage can occur to the precision opening. This can
cause damage to the refrigerator or create a fire hazard.
10) Reinstall burner, being careful that the end of the
burner fits into the slot on the burner bracket. Check
to make sure slots are centered under the flue tube
and the thermocouple is positioned properly (tip of
thermocouple extends over two slots of burner).
11) Be sure to reconnect the wire to high voltage elec-
trode. Check the electrode for proper location and
gap. (See FIG. 12).
ELECTRODE
BURNER T UBE
1/8" T O 3/16"
(3-5 mm)
12) Turn on manual gas shutoff valve and check all
fittings for leaks.
13) Connect 120 volt power cord to the outlet and
reconnect or turn on the 12 volt DC power.
14) Check LP gas safety shutoff. See
Section A. Instal-
lation, Item 9. Testing LP Gas Safety Shutoff.
GAS EQUIPMENT ASSEMBLY
FIG. 11
MANUAL SHUT-OFF VALVE
Shown in open position
Use a quarter dollar or a slotted srewdriver
to change position
SOLENOID VALVE
BURNER MOUNTING SCREWS
THERMOCOUPLE
BURNER
TUBE
SPARK
ELECTRODE
BURNER
JET
PRESSURE T EST
PORT
INLET FITTING
FIG. 12
