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DIAGNOSTIC SERVICE MANUAL
DOMETIC® RM7030/RM7732
Refrigerators
9.4
DOOR POSITION
The door position can be checked by observing any
misalignment of the door in relation to the frame.
NOTE
: Improper position of the refrigerator door can
cause the interior light to stay on when the door is
closed.
To adjust either door, loosen the hinge bracket screws,
reposition the door then tighten the hinge bracket
screws.
To adjust up or down, remove the door and add or
remove washers from the lower hinge pin. Reinstall
door and check for correct clearances.
9.5
AMBIENT TEMPERATURE
This is the temperature surrounding the recreational
vehicle, as well as the temperature of air at the back of
the refrigerator. As the ambient temperature increases,
the air temperature in the area of the cooling unit
increases. The RM7030 and RM7732 will maintain
approximately 43 degrees food storage temperature at
110 degree ambient temperature. As the ambient
temperature increases, it is possible for the interior
temperature of the refrigerator to increase. This means
proper installation, ventilation and leveling are important
for proper operating temperature of the refrigerator.
9.6
COOLING UNIT
The cooling unit is a self-contained, hermetically sealed
set of coils where the refrigeration process takes place.
The chemicals involved in the cooling process include
hydrogen, ammonia, water and a rust inhibiting agent.
There are no repairs recommended on the cooling unit.
If it is defective, replace with a new cooling unit.
To check the cooling unit, first verify the AC heating
elements are good (see Sec. 3). Then place approxi-
mately one gallon of water inside the refrigerator and
place a thermometer in one of the containers of water.
Next, supply 115 volts directly to the AC heating ele-
ments and operate for at least 12 hours. Then check
the temperature on the thermometer. It should be at 45
degrees or lower depending on test conditions (see
Sec. 9.2 and 9.5). If so, the cooling unit is good. If the
temperature of the water is above 45 degrees, replace
the cooling unit.
9.7
FOOD STORAGE
Proper refrigeration requires free air circulation within
the food storage compartment. Restricted air circulation
within the compartment will cause higher cabinet
temperatures. To remedy this situation, simply rear-
range your food items. It is also essential that the
shelves are not covered with paper or large storage
containers. Always remember to allow for proper air
circulation.
Odors or highly flavored foods should always be stored
in covered dishes, plastic bags or wrapped in foil or
waxed paper to prevent food odors. Vegetables, lettuce,
etc., should be covered to retain their crispness.
NEVER PUT HOT FOOD INTO THE REFRIGERATOR.
To reduce frost formation in and on the freezing com-
partment, cover stored liquids and moist foods and do
not leave the door open longer than necessary.
When the refrigerator is heavily loaded, it takes longer
to lower the refrigerator temperature, and longer to
make ice. A very heavy load may also cause defrosting.
9.8
HIGH HUMIDITY
High humidity may cause a small amount of condensa-
tion to form on the frame of the refrigerator. In extreme
cases, the condensation may actually run off the frame.
As the humidity is reduced, the sweating will decrease.
High humidity can also be a factor in rapid formation of
frost.
The RM7030 and RM7732 refrigerators have climate
controls installed (see Sec. 5.12). Use of the climate
control will reduce the formation of condensation on the
frame.
SMOOTH FIT, PROPER SEAL
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