Troubleshooting - Dometic RM2452 Installation & Operating Instructions Manual

10.The gas fittings on the refrigerator need to be
checked for leaks. Turn on the gas supply at the
shut-off valve. Apply a noncorrosive bubble solution
to the fitting and observe for leaks. The safety valve
will not allow gas pressure to any connections
between it and the burner jet. These fittings must be
checked before burner is lighted.
! WARNING
The safety shut-off must be manually depressed to
allow gas pressure to flow to the burner jet. Be sure
to apply the leak check solution before depressing
the safety shut-off. DO NOT allow any open flame,
sparks, smoking, etc., in the area of the test. DO
NOT depress safety shut-off for over 30 seconds.
11. Allow 10 minutes for the LP gas to leave the burner
area. Reconnect the 12 volt DC power. Light the
burner per Section. C, Operating Instructions, Item
3, Gas Operation . Allow burner to run 5 minutes.
12. Connect the power cord to the 120 volt AC wall
outlet.

2. TROUBLESHOOTING

THE REFRIGERATOR DOES NOT
COOL PROPERLY
A. Burner jet clogged. Remove the burner jet. Soak the jet
in wood alcohol and blow it out with compressed air. Do
not use a wire or pin to clean the burner jet.
B. Refrigerator is not level.
C. Flame has gone out.
Remedy: 1) Gas bottle is empty - refill. 2) The tip of
the flame failure safety device is not heated enough by
flame. 3) Clogged bypass screw - clean or exchange
it.
D. Venting problem.
Restriction in air flow across cooling unit.
E. Heavy frost buildup on evaporator fins.
Defrost.
F. Flue baffle not inserted properly in flue tube.
G. Improperly set thermostat.
See paragraph on thermostat. In hot weather the
setting should be closer to the "MAX" than usual.
H. Burner dirty.
Clean.
I. Burner damaged.
Replace.
J. LP gas pressure low at burner.
Set main regulator so the pressure does not drop below
11 inches water column at pressure tap.
K. Burner not located properly under flue tube.
Relocate.
F. Check LP gas safety shut-off. See Section A,
Installation, Item 9, Testing LP Gas Shut-Off .
G. THE ELECTRODE
For a proper ignition function it is necessary to keep the
electrode insulation dry and free from dirt. The gap be-
tween burner tube and electrode shall be a maximum of
3/16" (5mm) and a minimum of 1/8" (3mm). (See FIG. 16).
FIG. 16
NOTE: Avoid spraying water through the refrigerator's
vents while washing your RV.
ODOR FROM FUMES
Causes and Remedies:
A. The flame touches side of boiler due to dislocation of
the burner. Relocate. Burner dislocation may also
cause smoke and discoloring of walls and ceiling.
B. Burner damaged. Replace.
C. The flue tube is dirty. Clean flue as follows:
Cover burner and burner jet. Remove the flue cap
from the top of the flue tube and lift out the wire and
spiral baffle. Clean the flue from the top using a flue
brush. Clean the spiral baffle. Replace the spiral
baffle and flue cap.
All the instructions are to be followed closely. The refrigera-
tor is quality-guaranteed. However, we are not responsible
for any failures caused by improper adjustments and
unfavorable installation conditions.
CONTACT AN AUTHORIZED SERVICE CENTER
FOR PARTS AND REPAIRS AS NEEDED.
14
ELECTRODE
1/8" T O 3/16"
(3-5 mm)
BURNER T UBE