Dometic RM2301 - Manual (Page 9)

PERIODIC MAINTENANCE
NOTE. Before working on the refrigerator make sure
that 120 V A.C and optional 12 V D.C leads are di-
sconnected.
Shut off gas valve.
The Burner and the Burner Jet
The c o l o r of the flame shall be clear blue over the
slots of the burner. Once or twice a year depending
on use, it is necessary to clean and adjust the burner
assembly. Proceed as follows:
1.
2.
3.
4.
5.
6.
7.
Loosen screw and remove cover plate for burner
housing.
Disconnect lighter cable from the electrode.
Loosen burner fixing screw and withdraw burner.
Clean burner tube with a brush. Blow with com-
pressed air.
Screw off jet and clean with alcohol. Blow with
compressed air. Never use a needle or similar.
Reassemble.
Be careful that the end of the burner fits into the
slot on the bracket. The slots of the burner must
be centrally located under the boiler tube.
The Electrode
For a proper ignition function it is necessary to keep
the electrode insulation dry and free from dirt. The gap
between burner tube and electrode shall be max. 3/16”
(5mm) and min. 1/8” (3mm).
WARNING
If the refrigerator is used intermittently it should be
checked at least once a year. It is important to keep
the appliance area clear and free from, combustible
materials, gasoline and other flammable vapors and
liquides. Check the venting system. The flow of com-
bustion and ventilating air must not be obstructed.
Check the flue baffle that it is clean and reasonalby
free from soot. Heavy soot formation indicates impro-
per functioning of the burner. Clean baffle and flue.
Further, clean cooling unit and floor under refrigera-
tor. The entire gas installation should be checked for
leaks at intervals. Test all pipe connections soapy
water, not with an open flame.
NOTE. Any service of the gas controls, with exeption
for the above, mentioned replacement, maintenance
and cleaning operations must be performed by an au-
thorized service center only.
NOTE: Avoid water spraying through the refrigerators
vents while washing your RV.
FAULT TRACING
The refrigerator does not freeze satisfactorily
Causes and remedies
a) Jet orifice clogged. Unscrew jet and blow clear
or wash in alcohol. Do not use wire or pin to clean
orifice.
b) Check the leveling of the refrigerator.
c) Flame has gone out. Remedy: 1) Gas in bottle
is used up-refill. 2) Feeler point of the flame fai-
lure safety device is not heated enough by flame.
3) Clogged by-pass crew - clean or exchange it.
d) Air circulation around cooling unit is restricted.
Be sure that refrigerator is properly ventilated.
e) The evaporator is heavily coated with frost.
Defrost.
f) Flue baffle not inserted into the central tube of
the cooling unit
g) The thermostat is incorrectly used. See parag-
raph on thermostat. In hot weather the setting
should be closer to MAX than usual.
h) Gauze in burner head clogged. Clean.
h) Burner damaged. Replace.
i) Burner may be dislocated. Relocate.
j) Wrong gas pressure at the burner. Have pres-
sure checked at burner at gas bottle. Pressure at
burnermust not fall below ll”W.G. when thermo-
stat is set on MAX.
ODOR FROM FUMES
Causes and remedies
a) The flame touches side of the boiler due to
dislocation of the burr. Relocate. Burner disloca-
tion may also cause smoke and discoloring of
walls and ceiling.
b) Burner damaged. Replace.
c ) T h e f l a m e t o u c h e s f l u e b a f f l e . R e m e d y : l )
Burner damaged. Replace. 2) Flue baffle too low.
Correct the position of the baffle.
d) The flue tube is dirty.Clean flue as follows:
Cover burner and jet Remove flue top and baffle.
Clean flue with special flue brush. Clean baffle
before putting back in place. All the above in-
structions are to be followed closely. The refri-
gerator is quality-guaranteed. How ever, we are
not responsible for any failures caused by impro-
per adjustments and unfavorable installation
conditions. Contact service point or distributor
service dep. for assistance. Replacement Parts
Suppliers: See cover.