Troubleshooting - Dometic RM 2620 Installation And Operating Instructions Manual

Classic series refrigerator for lp-gas and electric operation

Hide thumbs

Table Of Contents

Table of Contents

Enlarged version

B. 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. Apply a non-corrosive

bubble solution to all LP gas connections. The ap-

pearance of bubbles indicates a leak and should be

repaired immediately by a QUALIFIED SERVICE-

MAN WHO IS FAMILIAR WITH GAS SYSTEM AND

REFRIGERATORS.

! WARNING

DO NOT use a flame to check for gas leaks.

C. Check the AMES control system by connecting/dis-

connecting 120 volt AC power, start/stop the engine,

etc. Compare the operation with the operation de-

scribed in description of operating modes. Page 9.

D. The LP gas pressure should be checked and the

main regulator re-adjusted if pressure is incorrect.

The correct operating pressure is 11 inches of water

column. The correct place to take the LP gas pres-

sure is at the test port just ahead of the burner jet.

(See FIG. 9).

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:

Unplug the refrigerator power cord from the 120 volt

AC outlet. (See FIG. 3).

Disconnect or shut off the 12 volt power to the

refrigerator.

Turn manual shutoff valve to OFF.(See FIG. 1).

Remove cover from the burner housing. (See FIG.

1).

Disconnect the wire from the high voltage electrode.

Remove the burner mounting screws and remove the

burner assembly. (See FIG. 9).

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.

Clean burner tube with a brush. Blow out burner with

compressed air.

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. Re-install and tighten burner jet.

NOTE: The color of the flame shall be clear blue over

the slots of the burner. (See FIG. 10).

Clear blue color

of flame

FIG. 10

! WARNING

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. 11).

FIG. 11

Electrode

Burner tube

12. Turn on manual gas shutoff valve and check all

fittings for leaks.

13. Connect 120 volt power cord to the outlet and recon-

nect or turn on the 12 volt DC power.

14. Check LP gas safety shutoff. See page 6.