Dometic RM1350 User Manual page 15

TO ChECk ThE CONNECTIONs FOR LEaks, FOLLOw
ThEsE sTEPs:
1. Verify that the LP gas supply is turned on.
2. apply a commercial non-corrosive bubble solution
to all LP gas connections.
3. The appearance of bubbles indicates a leak. shut off
the main gas supply and service immediately.
chEcking thE contRol SyStEm
Check the control system by connecting/disconnecting the
120V aC power, starting/stopping the engine, etc.
chEcking thE lP gaS PRESSURE
The LP gas pressure should be checked and the main regulator
readjusted if the pressure is incorrect. The correct operating
pressure is 11 inches of water column. Measure the LP gas
pressure at the test port, just ahead of the burner jet.
gaS EqUiPmEnt aSSEmbly
BURNER MOUNTING
SCREWS
BURNER JET
BURNER TUBE .
SPARK ELECTRODE
clEaning thE flUE bafflE and bURnER
Inspect the flue baffle. It should be reasonably clean and free of
soot. heavy soot formation indicates improper functioning of
the burner.
TO CLEaN ThE FLuE aND BuRNER, FOLLOw ThEsE
sTEPs:
1. Turn off the refrigerator.
2. unplug the power cord from the 120V aC outlet.
Disconnect the wires or shut off the 12V DC power
supply to the refrigerator.
3. Turn off the manual shut off valve.
4. Remove cover from burner housing. Remove the
burner mounting screws and then, the burner as-
sembly.
4. Remove the wire and flue baffle from the top of the
flue tube.
5. using a flue brush, clean the flue from the top. Blow-
ing compressed air into the flue will not properly
clean soot and scale out of the flue tube.
6. Put back the flue baffle.
5. Clean the burner tube with a brush. Blow out the
burner with compressed air.
maintEnancE & SERVicE
SOLENOID VALVE
INLET FITTING
MANUAL SHUTOFF VALVE
Shown in open position
PRESSURE TEST PORT
- 1 -
6. Remove burner jet, but first, clean burner area of soot
and scale that fell out of flue tube.
7. Remove the burner jet.
8. soak the jet in wood alcohol and blow it out with
compressed air.
!
WARNING
FIRE HAZARD. Do not use a wire or pin when
cleaning the burner jet as damage can occur to
the precision opening. Failure to heed this warn-
ing could cause fire resulting in personal injury.
9. Reinstall and tighten the burner jet.
10. Reinstall the burner. Ensure the end of the burner
fits into the slot on the burner bracket. Verify that the
slots are centered under the flue tube and the thermo-
couple is positioned properly (tip of thermocouple
extends over two slots of burner).
11. Check the electrode for proper location and gap.
1/8 " to 3/16 "
(3-5 mm)
12. Turn on the manual gas shut off valve.
13. Examine all fittings for leaks. (use a commercial
non-corrosive bubble solution.)
14. Connect the 120V power cord. Reconnect/turn on the
12V DC power.
15. Check the LP gas safety shut off.
Be sure to check the burner
flame for proper appearance.
The flame should be light blue.
If it has a yellow tip, it means
that it is burning incorrectly.
Electrode
Burner tube