Jayco Greyhawk 2015, Manual

Page: 59 / 121

CLASS C MOTORHOME SECTION 6 – ELECTRICAL SYSTEM
6-3
Inspection and maintenance
If the 12-volt power converter is not working (auxiliary battery not being charged)
check the reverse polarity fuse(s) located on the end of the converter.
There are
no customer serviceable parts inside the converter case and the
manufacturer’s warranty will be void if
the case has been removed . If you
have further concerns contact your dealer.
GFCI R
ECEPTACLE
O
UTLET
Grounding is your personal protection from electrical shock. Each motor home
has a ground fault current interrupter (GFCI) engineered into the electrical system.
This device has been designed to reduce the possible injury caused by electric
shock. The GFCI will not protect against short circuits or circuit overloads.
Test all GFCI receptacles monthly

Push in the GFCI “TEST” button. The GFCI “RESET” button should pop out
indicating the GFCI receptacle has been “tripped” and interrupted 120-volt
power.

Push in the GFCI “RESET” button to restore 120-volt power. Contact your
independent Jayco dealer for assistance if the GFCI “RESET” button does not
restore 120-volt power and pops back out.
A “tripped” GFCI receptacle indicates that abnormally high 120-volt current flow (a
ground fault) was detected through the electrical system grounding circuit. A fault
condition can be caused by faulty wire insulation, wet wiring inside an appliance,
or faulty electrical equipment connected to the circuit, etc. All ground faults must
be repaired before use of the motor home
12-
VOLT
DC S
YSTEM
The majority of your motor home 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.

The power converter will supply interior 12-volt DC power when the shore
power cord is plugged into a 120-volt external power source. The converter
will also charge the house batteries in most situations.

The house batteries power many interior 12-volt components including the
lighting fixtures, water pump, 12-volt motors, 12-volt appliances, etc, when the
motorhome is not connected to a 120 volt power source.
A
UXILIARY
S
TART
S
YSTEM
Your motor home is equipped with an auxiliary start switch which can momentarily
connect both the house and chassis batteries should the chassis battery become
discharged. To operate, depress the "Aux. Start" switch (located on the front
driver’s dash) and hold it down. While the "Aux. Start" switch is depressed use the
ignition key to start the chassis engine. Release the "Aux. Start" switch after the
engine has started.