TILT SIDE-TO-SIDE

Refrigerator

Bulletin R74/6D

March 2002

PROCEDURE FOR

CHANGING COOLING UNIT

IN CARAVAN 95 AND NDR

REFRIGERATORS

The following categories have been established predicated on similarity of design and procedure for

replacement of cooling units:

A - CATEGORY #1

RM2193 RM2332 RM2333

RM2452 RM2453 RM2551

RM2552 RM2553 RM2554

RM4223 RM4290 RM4292

C - CATEGORY #3

RM1272 NDR1282

RM1282 NDR1292

NDR1272 NDR1492

B - CATEGORY #2

RM2620 RM2652 RM2820

RM2852 RM3662 RM3663

RM3862 RM3863 NDR1062

These instructions must be read and under-

stood before installation of this kit. This kit must

be installed by a Dometic service center or a

qualified service technician. Modification of this

product can be extremely hazardous and could

result in personal injury or property damage.

GENERAL INSTRUCTIONS TO ALL MODELS

1. Disconnect shore power from coach, the positive lead

from battery, and turn propane OFF at the tank.

2. Through lower vent, unplug refrigerator 120V AC cord(s)

from wall receptacle. Disconnect 12V DC wires from

terminal block on the refrigerator (if models have 12V

DC). Tape or cap ends.

3. Check again to make sure propane is OFF at tank, then

remove coach gas line from gas cock on refrigerator and

cap coach gas line.

4. For Models with Ice Maker: Turn water OFF to

appliance. Disconnect coach’s water line from water

solenoid (cap end).

5. Remove the refrigerator from alcove.

A. Category #1:

RM2193 RM2332 RM2333 RM4223

RM2452 RM2453 RM2551 RM4290

RM2552 RM2553 RM2554 RM4292

STEP 1. REMOVAL OF COOLING UNIT

1. See General Instructions on all models.

2. Loosen screws holding the thermostat bulb to fins. See

FIG. A1.

Note: Some models have a plastic thermistor bracket

clipped to the fin.

3. Remove the screws from the back wall of the freezer and

the fins.

Note: On models RM2452, RM2453, RM2551, RM2552,

RM2553 and RM2554, the fins are installed on the cooling

unit before it is put in the cabinet. The cooling unit must be

out of the cabinet before the fins can be removed.

4. On all other models remove the fins. See FIG. A1.

5. Lay the refrigerator face down on two 2x4’s to avoid

damaging the refrigerator front.

6. Remove cover from boiler and heating element(s).

7. Remove burner cover and then the burner assembly.

Note: Some models have a bracket that holds the manual

gas cock and/or the electric solenoid valve. Remove the

screws from these brackets and save to be reinstalled.

8. Cut the wire ties along the left side. Remove the

thermostat sensor tube (if required) and position the

burner assembly and wires so they will not be damaged

by pulling the cooling unit.

Important: After the cooling unit has been installed,

the initial start-up time can be shortened by tilting the

refrigerator from side-to-side and then from front-to-

back before the refrigerator is turned on. Hold in each

tilt position for approximately 30 seconds to settle

solution to bottom of cooling unit.

TILT FRONT-TO-BACK

Run the refrigerator on a bench for 12 hours after the cooling

unit has been installed. The refrigerator should not have food

in it during this test.

REVISION

Form No. 3107154.035 3/02

(Replaces 3107154.027)

LaGrange, IN 46761

Dometic RM3863 - Page 25

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