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12-volt DC System
The majority of your motorhome lighting is powered by 12-volt electricity. The 12-volt DC
system is composed of components that will operate when the following conditions are met:
Power is supplied by the chassis alternator when the chassis engine is running.
12-volt DC power is supplied when the shore power cord is plugged into a 120-
volt external power source. House batteries will be charged also in most situa-
tions.
The house batteries power many interior 12-volt components including the light-
ing xtures, water pump, 12-volt motors, 12-volt appliances, etc, when the mo-
torhome is not connected to a 120-volt power source.
The 12-volt fuse panel is labeled to indicate fuse sizes, positions and the components pow-
ered.
Before replacing a fuse, always turn o the electrical components protected by it.
1. Disconnect the shore power cord.
2. Inverter should be OFF.
3. Remove the fuse panel cover to check fuses.
4. Pull the fuse straight out of the fuse block.
5. Insert a new fuse of the same specied voltage, amperage rating and type in the original
location.
The fuse panel label should be kept permanently axed to your recreation vehicle. Fuses
will not oer complete protection of the electrical system in the event of a power surge or
spike.
There may be one or more 12-volt DC power outlets in your recreation vehicle. When the
12-volt DC outlet is used as a power source for an electric appliance, make sure the appli-
ance operates on 12-volt DC power and that it consumes less than 60 watts (5 amps) of
power.
Replacement fuses must be of the same voltage, amperage rating and type.
doing so may cause a re by
overheating the RV wiring.
Keep the protective dust cap on the 12-volt DC outlet when not in use to pre-
vent ingestion of foreign material and potential short circuit conditions.
the converter when a battery is used. If the battery is connected backwards to the fuse board
a fuse will blow preventing damage to the converter. Four easily accessible fuses are located
next to the wizard button. Replace with fuses of the same type and rating.
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