Dometic RM2354, Installation And Operating Instructions Manual

Page: 12 / 16

12
MAINTENANCE & SERVICE
The user should be aware of service that must be
done on a regular schedule to keep the refrigerator
operating properly. The service should only be per-
formed by a qualified technician who is familiar with
LP gas systems and refrigerators.
1. HEATER
The heat necessary for the operation of an absorption
cooling unit is supplied by an electric heater mounted in
a pocket of the boiler system.
This model is equipped with two electric heaters, one for
120 volt AC and one for 12 volt DC.
To replace the heater proceed as follows:
1. Unplug the refrigerator power cord from the 120-
volt AC outlet.
2. Disconnect or shut off the 12 volt DC power to the
refrigerator.
3. Remove the power module cover see FIG. 1.
4. Disconnect the 120 V AC heater leads from the
power module or the 12 V DC lead from the relay.
5. With a pair of pliers unfold the lug holding the lid
of the boiler casing and open the lid.
6. Remove some insulation wool so that the heater
is accessible.
7. Turn and lift the heater out of its pocket.
8. Fit the new heater into the pocket.
9. Connect the heater leads and put on the power
module cover.
10. Reset the insulation and close the lid of the boiler.
2. REFRIGERATOR REMOVAL
Before working on the refrigerator, make sure the AC
voltage and DC voltage leads are disconnected. Shut off
the gas supply at the LP tank. Disconnect the gas sup-
ply line at the rear of the refrigerator, see FIG. 1.
Always use a back up wrench when loosening and tight-
ening connections.
Cap the gas supply line, loosen the screws anchoring
the refrigerator to the enclosure and slide the refrigera-
tor out of the compartment.
When replacing the refrigerator make sure that the seal-
ing strips are properly positioned.
Replacement is the reverse of removal. Check all con-
nections for gas leaks.
Refer to section INSTALLATION, page 4 to 8.
3. PERIODIC MAINTENANCE
To keep your Dometic refrigerator operating efficiently
and safely, periodic inspection and cleaning of several
components once or twice a year is recommended.
A. It is important to keep the area at the back of the
refrigerator clean. Check the lower vent, upper vent
and area between these openings for any obstruc-
tions such as bird/insect nests, spider webs, etc.
Clean the coils on the back of the refrigerator. Use a
soft bristled brush to dust off the coils.
It is important to keep the refrigerator area free from
combustible material, gasoline and other flammable
vapors or liquids.
NOTE: The following maintenance is required once or
twice a year, but should only be done by a qualified ser-
viceman who is familiar with LP gas systems and refrig-
erators.
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 appearance of bubbles indicates a leak and
should be repaired immediately by a QUALIFIED
SERVICEMAN WHO IS FAMILIAR WITH GAS SYS-
TEM AND REFRIGERATORS.
! WARNING
DO NOT use a flame to check for gas leaks.
GAS EQUIPMENT ASSEMBLY
FIG. 9
INLET FITTING
NUT
MANUAL SHUTOFF VALVE .
Shown in open position
PRESSURE TEST PORT .
BURNER JET .
BURNER MOUNTING SCREW
BURNER TUBE
SPARK ELECTRODE
THERMOCOUPLE
SOLENOID VALVE .