Dometic RM3762RBFX, Operating Instructions Manual

12

MAINTENANCE & SERVICE

6.  Verify that the burner jet slots are centered under 

the flue tube.

7. 

Be sure to check the burner flame for proper ap

-

pearance. The flame should be clear blue over 

the slots of the burner.

Electrode 

Burner tube 

1/8” 

  to 3/16”  

(3-5 mm) 

8.  Check the electrode for proper location and gap. 

Adjustments may be made with needle nose pli-

ers if necessary.

9.  Turn on the manual gas shut off valve. 

10. 

Examine all fittings for leaks. Use a commercial 

non-corrosive bubble solution.

11.  Connect the 120 VAC power cord.
12. Reconnect / Turn on the 12 VDC power.
13. Check LP gas safety shutoff.

To keep the refrigerator working properly, a quali-

fied service technician should, at least once a year, 

inspect the connections, the control system, the LP 

gas pressure, and the flue baffle. 

FIRE OR EXPLOSION HAZARD. Never use an 

open flame to check for gas leaks. Failure to 

obey this warning could cause a fire or explo

-

sion resulting in death or serious injury.

FIRE AND INHALATION HAZARD. If the re-

frigerator stops working -or- if it emits an am-

monia smell, immediately turn the refrigerator 

off, leave the vicinity, and contact a Service 

Center.

A high concentration of ammonia refriger-

ant could cause an inhalation hazard, could 

cause chemical burns to the skin and eyes, 

and could cause a fire resulting in death or 

serious injury.

FIRE HAZARD. Never use a wire or pin to clear 

obstructions from the burner jet as damage 

will occur. Do not attempt to adjust the burner 

jet. Failure to obey this warning could cause 

a fire resulting in death or serious injury.

PERIODIC MAINTENANCE

To be performed by a qualified service technician 

only.

CHECKING THE LP GAS CONNECTIONS

1.  Check all connections in the LP gas system (at 

the back of the refrigerator) for gas leaks. The 

LP gas supply must be turned on. 

2.  Apply an approved leak detection solution to all 

LP gas connections. The appearance of bubbles 

indicates a leak and should be repaired imme-

diately!

CHECKING THE CONTROL SYSTEM

Check the control system by connecting/disconnecting the 

120 VAC power, starting/stopping the engine, etc.

CLEANING THE BURNER

1.  Turn off the refrigerator. 
2.  Unplug the power cord from the 120 VAC outlet. 

Disconnect the wires or shut off the 12 VDC 

power supply to the refrigerator.

3.  Turn off the manual shut off valve.
4.  Remove cover from burner housing.
5.  Clean the burner tube with a brush. Blow out the 

burner with compressed air.

REPLACING THE FUSES

The refrigerator is equipped with the following 3 

fuses:

• 5 A fuse for 12 VDC.
• 5 A fuse for the AC heating element.
• 3 A in-line fuse for the fan and heat tape on ice maker 

models only.

TO REPLACE A FUSE, FOLLOW THESE STEPS: 

1.  Turn off the refrigerator and unplug the power 

cord.

2.  Remove the 12 VDC power.

3.  Open the power module cover.

4.  Snap the fuse out of the fuse holder.

5.  Fit the new fuse in to the fuse holder.

6.  Close the power module cover.

Clear Blue Color

Of Flame

Slots Centered 

Under Flue Tube