The AC output of the generator powers the motorhome air conditioners,
the AC inverter/converter charger, all appliances and items plugged into the
electrical outlets of the motorhome. The number of electrical appliances that
can be operated at any given time depends upon how much power is avail-
able from the generator. If the generator is “overloaded” or a short circuit
causes “over current,” either the generator will shut down or the circuit
breaker will trip. If power consumption, in total, exceeds the generator power
output, compensation for temperature and elevation may be necessary.
Operate some appliances in sequence rather than all at the same time.
NOTE: The generator may shut down when it is loaded
nearly to full power and an air conditioner (or other large
motor load) cycles on. For a brief moment during start up
an electric motor can draw up to three times the rated
power. For this reason it may be necessary to operate some
appliances in sequence when air conditioners or other large
motor loads are on.
It is important to remember that air density decreases as altitude increas-
es, causing the generator engine power to decrease. Power decreases at
approximately three percent of the rated power each 1,000 feet (305M) of
increase in elevation above sea level. It may be necessary to operate fewer
appliances at the same time when the camping location is at a higher eleva-
tion. For example: 7,500 watt generator at 5,000 ft. = 6,375 watts net.
Temperature also affects maximum output power. For example: at 120º a
7,500 watt generator produces 6,000 watts net.
REFERENCE: The diesel generator may shut down for
other reasons beside “overloads.” A blink code may
appear on the control switch. Refer to the manufacturer’s
manual to obtain an explanation of the codes.
If a circuit breaker trips in the main AC breaker panel, or on the generator
control panel, there may be a short circuit or too much load.
NOTE: The generator will continue to run after a circuit
breaker trips.
If a circuit breaker trips, disconnect or turn off as many loads as possible.
To reset the circuit breaker, switch the circuit breaker to OFF; then switch
back to ON to reconnect the circuit. If the circuit breaker immediately trips,
the electrical distribution system has a short or the circuit breaker is faulty.
Call a qualified electrician. If the circuit breaker does not trip, reconnect a
combination of loads that will not overload the generator or cause the circuit
breaker to trip again. Remember to compensate for elevation and temperature
changes when reconnecting loads.
Electrical Systems - House
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WINDSOR 8•195
Powering The
Equipment
Resetting the
Circuit Breaker
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