GMC 1976 ZEO 6083 Maintenance Manual page 672

Should any of these lights fail to operate first
make sure that the electrical source is sufficient, then
check the fuse, next replace the bulb itself, and fi
nally if there is still no operation check the wiring
and fixture.
120-VOLT AC ELECTRICAL SYSTEM
The MotorHome living area is equipped with
120-volt wiring and duplex receptacles (including
optional exterior receptacle), like those found in
modern homes. These receptacles (including op-
tional exterior receptacle), the power converter and
the water heater are operational whenever the
MotorHome is connected to an external power
source or the motor generator is operating . If the
MotorHome is equipped with a roof mounted air
conditioner or a vacuum cleaner these will also be
run by the 120-volt system . Circuit breakers and the
circuits they protect are shown in Figure 6.
For wiring information, location, and specifica-
tions refer to Figure 5 and Specifications at the end
of this section.
EXTERIOR RECEPTACLE
The optional exterior receptacle includes a
ground fault interruted circuit breaker designed to
protect the user from the hazards of line to ground
electric shock. The exterior receptacle is located on
the right side of the vehicle, beside the refrigerator
grille, as shown in Figure 7.
The exterior ground fault circuit interruptiong
receptacle is designed to protect people using appli-
ances that are plugged into this receptacle .
LIVING AREA ELECTRICAL 2413- 5
For light bulb specifications or for current draw
ratings refer to Specifications at the end of this sec-
tion .
This receptacle does not protect against over-
loads, which must be done by circuit breakers
located in the living area electrical compartment. If
an appliance continuously trips the receptacle, the
appliance is defective and should be repaired or re-
placed .
TESTING THE EXTERIOR RECEPTACLE
For maximum protection against electrical shock
hazard, the exterior receptacle should be tested at
least once a month and the test date recorded .
TEST PROCEDURE
1 . Push "test" button . The "reset" button should
pop up, showing a red line which indicates that
power to the protected circuit is discontinued .
CAUTION : If the "RESET" button does not
pop up when test button is pushed, a loss of
ground fault protection is indicated. Do not
use. Have receptacle serviced by a qualified
electrician .
2. To restore power, push the "reset" button .