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PROBLEM CAUSE SOLUTION
Water entered
the unit.
Water entered the unit Disconnect the inverter and wipe
immediately with a dry cloth or
permanent damage can occur.
Alarm is
sounding.
Low voltage shutdown or
thermal shutdown has
occurred.
Allow unit to cool down. Improve
air circulation around the
unit. Relocate unit to a cooler
environment. Reduce load if
continuous operation is required.
Measured
inverter output
is too low.
Standard “average
reading” AC voltmeter
used to measure output
voltage, resulting in an
apparent reading 5 to 15V
too low.
Inverter’s “modified sine
wave” output requires “true
RMS” voltmeter for accurate
measurements.
Battery voltage is too low. Recharge the battery.
Battery run
time is less
than expected.
AC product power
consumption is higher
than rated.
Use a larger battery to make up for
increased power requirement.
Battery is old or defective. Replace the battery.
Battery is not being
properly charged.
Some chargers are not able to
fully recharge a battery. Make
sure you use a powerful charger.
Troubleshooting Quick Reference
USB Power Output
DC output voltage 5V DC
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