Thor Motor Coach CLASS B, Owner'S Manual, Page: 77 / 116

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E L E C T R I C A L S Y S T E M
T H O R M O T O R C O A C H | M A D E T O F I T
Your motorhome’s generator may be equipped with
features that prevent operation if certain maintenance
parameters are not met, i.e., low engine oil level,
clogged air and fuel filters, etc.
If your generator fails to start or shuts off unexpectedly,
and there is an adequate fuel supply and 12 volts DC
present, it may need maintenance attention. Refer to
the manufacturer’s owner’s manual for troubleshooting
and maintenance procedures.
NOTICE NOTICE
Safe Generator Operation
IMPORTANT: READ AND UNDERSTAND THE
GENERATOR OWNER’S MANUAL BEFORE
OPERATING THE GENERATOR. Observe all operating
instructions and warnings as well as all recommended main-
tenance schedules and procedures.
The on-board generator allows your motorhome to be elec-
trically self-contained. It provides 120 volts AC when shore
power is not available (via the automatic transfer switch) and
indirectly provides 12 volt DC energy through the converter.
Generator operating controls are integrated into the main
multiplex panel. Review and follow all operational and safety
precautions provided by the generator’s manufacturer, written
on warning labels and provided in the manufacturer’s owner’s
manual, which is included in your Owner’s Packet.
1. DO NOT operate the generator while sleeping or allow
others to sleep in the motorhome while the generator
is operating. You would not be aware of exhaust gases
entering the motorhome, or be alert to symptoms of
carbon monoxide poisoning.
2. DO NOT operate the generator in an enclosed building or
in a partly enclosed area such as a garage or storage unit.
3. DO NOT operate the generator when the motorhome
is parked in high grass or brush. Heat from the exhaust
could ignite dry vegetation.
4. DO NOT operate the generator longer than necessary
when the vehicle is parked. This will help to reduce
exhaust gases near the motorhome.
5. DO NOT simultaneously operate generator and a venti-
lator fan, which could result in the entry of exhaust gas.
When ventilator fans are used, open a window on the
opposite side of the motorhome and ‘upwind’ of genera-
tor’s exhaust pipe, to provide cross ventilation.
6. DO NOT open nearby windows, ventilators, or doors
into the passenger compartment, particularly those which
can be ‘down wind,’ even or short periods of time. When
parked, orient the vehicle so that the prevailing winds will
carry the exhaust away from the motorhome.
7. DO NOT operate the generator when parked in close prox-
imity to vegetation, snow, buildings, vehicles, or any other
object could deflect the exhaust under or into the vehicle.
8. DO NOT touch the generator when running, or imme-
diately after shutting OFF. Heat from the generator can
cause burns. Allow the generator to cool before attempt-
ing maintenance or service.
9. DO NOT use the generator if the exhaust system is
damaged. Before using the generator, inspect the exhaust
system. Test the carbon monoxide alarm every time you
use the motorhome. If the CO alarm sounds, immediately
move everyone to fresh air and ventilate the motorhome.
Shut the generator OFF, and do not operate it until it has
been inspected and repaired by a qualified technician.
OPERATING TIPS:
• The main battery switch must be ON to start and operate
the generator.
• Control switches for operating the generator are incorpo-
rated in the multiplex touch-screen panel.
• Always turn OFF the air conditioner, furnace, and all
electrical appliances before disconnecting the shore line
power cord from the 120 volts AC power source and/or
before shutting OFF the generator.
• The generator operates on gasoline drawn from the vehi-
cle’s fuel tank. In some installations, fuel will not reach
the generator if the level of the vehicle’s fuel tank drops
to a certain level (usually 1/4 tank).
NOTE: Generators supplied with diesel-powered
Class B motorhomes are fueled by propane gas.
When operating the generator, observe all pro-
pane-related safety precautions.
Starting and Stopping Procedures
Your generator can be started and stopped from the main
multiplex control panel, integral control panel on the gen-
erator, or from the multiplex system’s remote phone app.
Outlined here are the simple steps for starting and stopping
the generator:
• Before starting the generator, turn OFF air conditioners
and large electrical loads.
• Before starting in cold weather, turn OFF all appliances
for best long-term performance.
TO START:
1. Locate the Generator ON/OFF switch, on the Monitor
Panel or integrated into the Multiplex Control Panel.
2. Prime the engine by holding the OFF position of the start/