Dometic Silhouette S1521, Installation And Operating Instructions Manual

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 SER-

VICEMAN WHO IS FAMILIAR WITH GAS SYSTEM

AND REFRIGERATORS.

WARNING

DO NOT 

use a flame to check for gas leaks.

c.

D.

E.

1.

2.

3.

4.

5.

6.

7.

8.

9.

Check

the AMES control system by connecting/dis-

connecting 120 volt AC power, start/stop the en-

gine, etc. Compare the operation with the operation

described in description of operating modes. Side

14.

NOTE: 

The following maintenance is required once

or twice a year, but should only be done by a

qualified serviceman who is familiarwith LP gas sys-
tems and refrigerators.

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. 16).

Inspect 

the 

flue baffle. It should be reasonably clean

and free of soot. Heavy soot formation indicates im-

proper functioning of the burner. The flue and

burner both require cleaning in the following man-

ner:

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. 16).

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 burnertube with a brush. Blow out bumerwith

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. 

17).

CAUTION

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.

11.

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) 

Be 

sure 

to reconnect the wire to high voltage

electrode. Check the electrode for proper location

and gap. (See FIG. 18).

FIG. 18

12.

13.

14.

   (3-5

 mm)

BURNER  TUBE

Turn on manual gas shutoff valve and check all fit-

tings for leaks.

Connect 120

volt power cord to the outlet and

reconnect or turn on the 12 volt DC power.

Check LP gas safety shoutoff. See side 5 and 6.

TROUBLESHOOTING

The Refrigerator Does Not Cool Properly

Causes and remeides

Failure of refrigeration does not necessairily indicate that

the cooling system is defective. Other factors governing

its operation must be checked.

1.

1 a.

1 b.

1 c.

1 d.

1 e.

Common.

Fuse(s) blown, replace (see side 13).

Check level of refrigerator.

Venting problem. Restriction in airflow across cool-

ing unit

Heavy frost buildup on evaporator fins, defrost.

If the refrigerator has been operating on gas and a

loss of cooling is noted, convert the refrigerator to

AC power (see start up instructions side 10).

If 

the refrigerator has been operating on AC, switch

to gas operation. This will determine if

a component

failure in the electric or gas controls is causing the

cooling fault. After the refrigerator has been con-

verted from one power source to the other (gas to

AC, or AC to gas) allow time to assure the unit is cy-
cling properly. At the end of the period the freezer

plate should start to cool.

14