Electrical Systems; Batteries; Chassis 12-Volt Electrical System; Chassis Bulbs And Fuses - Fleetwood Expedition 2009 Service Manual

ELECTRICAL SYSTEMS
Your motor home is equipped with three electri-
cal systems:
the chassis 12-volt system
the Fleetwood l2-volt house system
the 120-volt AC system.
They operate together to give you electrical
power for many different situations.
BATTERIES
Your motor home has two battety systems. One
system supplies 12-volt DC power to start the
vehicle engine. The other system supplies 12-
volt DC power to the house living area.
A.
WARNING
The systems in this coach are not designed to be
used for any life-support applications. In the unlikely
event a system in this coach should malfunction, or
fail to operate, it is possible any connected appli-
ances, including life support equipment, may also fail,
resulting in potential medical complications.
CHASSIS 12-VOLT
ELECTRICAL SYSTEM
The chassis 12-volt or vehicle electrical system
generally includes:
the chassis battery
chassislhouse battery charging system
ignition system
instrument panel and controls
headlights, taillights, tum signals
power entry step
Propane detector/alarm
leveling jacks (if equipped)
slide-out (if equipped)
fog lights (if equipped)
air horns (if equipped)
power seats (if equipped)
rudio
luggage compartment lights
other vehicle lights and accessories
Chassis Bulbs and Fuses
Exterior bulb types are listed in the section of
04-1 this Owner's Manual. Always replace
bulbs and fuses with equivalent types and rat-
ings.
Fuses will interrupt the flow of electricity if a
circuit is overloaded. The 12-volt chassis fuse
panel is located under the driver's side instru-
ment panel. Additional fuses are located under
the hood, or in 12-volt power leads on the
related equipment and accessories.
CAUTION
Always replace bulbs and fuses with equivalent types.
The type is marked on the bulb or fuse.
FLEETWOOD 12-VOLT HOUSE
AND AUTOMOTIVE SYSTEM
This system generally includes:
aUl2-volt interior lighting fixtures & outlets
fresh water pump
l2-volt accessories
House batteries provide 12-volt DC power.
These batteries are not the chassis 12-volt bat-
teries. Power is also provided by a DC converter
that operates when the motor home electrical
cord is plugged into 120-volt AC power source
or by the generator (if equipped). The house bat-
teries are charged by the motor home engine
alternator, or by the converter when it is operat-
ing.
.1'1
NOTE
1
Power for living area radios and tape decks is avail-
able from either the chassis or house batteries.
A
switch on the instrument panel allows you to select
the power source.
If
you use the radio, tape decks, or
other 12-volt DC equipment for long periods of time
when the motor home engine is not running, either
battery may be discharged.
Battery Disconnect
(If Equipped)
Some accessories or equipment such as clocks,
radios or the refrigerator may draw small
amounts of current even when turned OFF. For
your convenience, your motor home may be
equipped with relay operated disconnect cir-
08-1