12-Volt Dc System; 12-Volt Fuse Panel; Replacing A Fuse - Jayco JAY FEATHER Towables 2020 Owner's Manual

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BOOST MODE: Green LED is on solid. Output voltage
is 14.4VDC to rapidly charge the battery up to 90% of full
charge.
STORAGE MODE: Green LED flashes every 6-8 seconds.
Output voltage has been reduced to 13.2VDC; the RV bat-
tery is fully charged and converter is maintaining the charge.
MANUAL MODE (Not recommended): The wizard
mode button is used to override the charge wizard. Refer
to the converter owner's manual for additional information.
REVERSE BATTERY PROTECTION: Reverse polarity
fuse(s) provide protection for 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.

12-Volt DC System

The majority of your recreation vehicle 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 tow vehicle alternator when the engine is running and the
7-way trailer plug is connected. This powers the RV's running lights, brake lights,
turn signals and brakes. In addition, the 7-way trailer plug provides a common
ground and a 12-volt charge line to charge the auxiliary battery.
The converter will supply interior 12-volt DC power when the power cord is
plugged into campground power. The converter will also charge the RV battery in
most situations (refer to Battery Disconnect).
The auxiliary battery powers many interior 12-volt components including the
lighting fixtures, water pump, 12-volt motors, 12-volt appliances, etc. It also pow-
ers the breakaway switch.

12-Volt Fuse Panel

Replacement fuses must be of the same voltage, amperage rating and type.
Never use a higher rated replacement fuse; doing so may cause a fire by
overheating the RV wiring.
The 12-volt fuse panel is labeled to indicate fuse sizes, positions and the components pow-
ered. Fuses are located in the load center.

Replacing a Fuse

Before replacing a fuse, always turn off the electrical components protected by it.
1.
Disconnect the shore power cord.
Turn "off" the inverter (if so equipped).
2.
3.
Disconnect the house or auxiliary batteries main negative battery cable.
4.
Remove the fuse panel cover to check fuses.
5.
Pull the fuse straight out of the fuse block.
Insert a new fuse of the same specified voltage, amperage rating and type in the original
6.
location.
Section 6: Electrical System
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93

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