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17
that occurs when the engine starts may trigger a low
voltage shutdown.
• AC Overload Shutdown If you connect an AC load
rated higher than 500 watts or 2.2 amps or that draws
excessive surge power, the 500 Inverter shuts down.
The
PWR
light stays on, and the light comes on
to indicate that the inverter is overloaded.
Note: High startup surge requirements The power,
or “wattage” rating of an AC load is the average amount
of power it uses. When they are first turned on, many
AC loads consume more power than their continuous
power rating. TVs, monitors, and electric motors are
examples of loads that have high surge requirements at
start up. Although the 500 Inverter can supply
momentary surge power to 1000 watts, some products
rated less than 500 watts can exceed its surge
capabilities and trigger the AC overload shutdown
feature. (See page 20 for troubleshooting procedures.)
• High Battery Voltage Shutdown If a defective battery
charging system causes the battery voltage to rise to
dangerously high levels, the inverter shuts down
automatically. The
PWR
light stays on, and the
light comes on.
• High Temperature Shutdown If the inverter exceeds
its safe operating temperature because of insufficient
ventilation or a high-temperature environment, it
sounds an alarm and shuts down automatically. The
PWR
light stays on, and the light comes on. When the
inverter has cooled sufficiently, it restarts automatically.