User Manual

● Reduce the load power, or turn on the
appliance first, then turn on the inverter.
● Choose a bigger inverter
● Change a bigger battery and ensure fully
charged.
No output voltage,
buzzer whistles
continuously
Problem Reason
Solutions
Low Input DC Voltage
High Input DC Voltage
Overload
Over temperature
● Do not use it when the battery is charging
● Check the rated voltage of the battery and
make sure that it is in the allowable range
of the input voltage.
Reduce the load power
● Cut off the load and let it cool naturally for
10 to 30 minutes.
● Restart it after it resumes to normal
temperature. Reduce the load. avoid
blocking the vent and improve the
ventilation condition.
No AC output voltage?
1.The power switch is off.
2.Poor contact with battery.
● Press the power switch for 1-2 second to
turn it on. it is a long press type switch
●Check the cables and make sure they are
tightly connected.
Output voltage below
100 V AC?
“True RMS”voltage meter is
required to properly measure
output voltage of modified
wave inverter
Cannot drive the load?
Tester indicated
"Open Ground"?
This is because it is not connected
to a"true Earth ground ", meaning
it is not connected to a metal rod
stuck in the Earth. it would be
impossible to do so in a boat or
car while moving. The power
inverter DOES NOT and cannot
create a true Earth ground on its
own.
● Test output voltage with a True RMS meter
● Try to maintain the input voltage in the
range of rated power
● Change the battery of the meter then test
again.
1.Load power is too large. Or the
actual power of the appliance
exceeds nominal power.
2.The starting power is larger than
rated power (especially for
appliances with motor)
3.Battery is too small.
● Don't need the tester to do the Grounding
Test.
● Refer to the manual to do the Grounding
Starting alarm ?
The main reason is that ths
instantaneous current is too large,
which leads to the detection of low
voltage and trigger under-voltage
alarm.
Please restart the inverter several
times.
Got 40V or so while
testing inverter's
ground wire and
zero line?
This voltage has no meaning,
zero line can be ground.
This is normal, there is no current
leakage.
Low Input DC Voltage
If the unit still doesn't work normally after using all the methods above, it maybe the
internal faults of the circuit. Please contact us: [e-mail]
B. TROUBLESHOOTING TIPS
9
10
WARNING: REVERSE CONNECTED THE CABLES WILL DAMAGE THE INVERTER
AND AVOID YOUR WARRANTY!
14. WARRANTY
This product is designed using the most modern digital technology and under
very strict quality control and testing guidelines. If, however, you feel this product is
not performing as it should, please contact us: [e-mail]
We will do our best to resolve your concerns. If the product needs repair or
replacement, make sure to keep your receipt/invoice, as that will need to be sent
back along with the package and prepaid to VOLTWORKS. You have a full 18
months warranty from date of purchase.
The following situations will void warranty:
1.The box is distorted, damaged or changed, and interior parts damaged because of
an exterior hit or drop not reported at time of delivery.
2.Connect the DC power incorrectly reversing the polarity.
3.Dismantled or repaired the unit by an unauthorized person.
4.The unit was damaged by incorrect installation or operating method.
To find out where to buy any of our products, you may also e-mail:
Customer Service Contact: [e-mail]