Troubleshooting - Dometic NRX Series Operating Manual

Troubleshooting

I
NOTE
To safely operate 12 V consumer units in the caravan while driving, it must be ensured that the
towing vehicle provides sufficient voltage. On some vehicles, the battery management system
may automatically switch off the consumer units to protect the battery. Ask your vehicle manu-
facturer for more information.
Fault
The refrigerator does not
work.
Poor cooling, increase in
interior temperature. Com-
pressor runs continuously.
Poor cooling, increase in
interior temperature. Com-
pressor does not run often.
EN
Possible cause
The fuse in the DC cable is defective.
The vehicle fuse has blown.
The vehicle battery is discharged.
The ignition is not switched on.
The temperature at the compressor is
too low (<0 °C).
The refrigerator switches off automati-
cally if the voltage is insufficient.
(Cut-off voltage: 10.4 V)
The ventilation around the cooling unit
is not sufficient.
The interior walls are iced up.
The temperature is set too high.
The ambient temperature is too high.
Too much food was placed in the refrig-
erator at the same time.
Too much warm food was placed in the
refrigerator at the same time.
The refrigerator has not been operating
for very long.
The condenser is dirty.
The fan is defective.
The battery capacity is exhausted.
4445103631
Suggested remedy
The fuse must be replaced.
Contact an authorized service agent.
Replace the vehicle fuse. (Refer to the
operating manual of your vehicle.)
Test the battery and charge it.
Switch on the ignition.
Close/cover all external ventilation grilles
completely with insulation material.
Load the battery. The refrigerator will start
again automatically.
(Cut-in voltage: 11.7 V)
Check that the ventilation grille is not
obstructed. Move the refrigerator to
another location.
Check whether the refrigerator door
closes properly. Ensure that the refrigera-
tor seal fits correctly and is not damaged.
Defrost the refrigerator.
Set a lower temperature.
Remove the ventilation grille for a while so
that warm air can escape quicker.
Remove some of the food.
Remove the warm food and leave it to cool
down before putting it in again.
Check the temperature again after four or
five hours.
Clean the condenser.
Replace the fan.
Charge the battery.
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