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Unusual Low
output AC voltage
Poor battery. Internal
MOSFET faulty.
Drive circuit faulty.
1. Reverse the potentiometer on drive panel to get right output
voltage.
2. Ensure the battery is enough and full.
3. Contact the technical support.
Got 60VAC or so
while testing
inverter's ground
wire and Neutral
line ?
This voltage is an
electromagnetic induction
voltage, there is no
current leakage.
This is normal. Inverter output communication does not
distinguish hotline and neutral line, if you need to distinguish the
hotline and neutral line, please contact customer service or after-
sales technology.
The alarm sounds
1 time per time,
after 2 seconds,
same beeps again.
The input voltage is very
low. DC12V inverter: 10-
10.5V DC24V inverter: 20-
21V
1. Ensure the battery is enough and full.
2. Check that the battery cables are suitable for transporting the
DC voltage. Use a thicker or shorter cable.
3. Setting DC input circuit connections.
4. The inverter loads the electrical power exceeding the power
provided by the battery, increasing the battery specification.
The alarm sounds
2 times per time,
after 2 seconds,
same beeps again.
The input voltage is too
low and the inverter stop
working.
1. Ensure the battery is enough and full.
2. Check that the battery cables are suitable for transporting the
DC voltage. Use a thicker or shorter cable.
4. The inverter loads the electrical power exceeding the power
provided by the battery, increasing the battery specification.
The alarm sounds
3 times per time,
after 2 seconds,
same beeps again.
The input voltage is too
high. DC12 inverter:
higher than 15.5V;DC24V
inverter: higher than 30V
1. Check that the voltage at the input DC terminals does not
exceed 15V/30V.
2. Check that we are not using a panel or wind turbine not
regulated for battery charging
，
Make sure that the maximum
voltage of the battery controller does not supply voltages
higher than 15V/30V.
The alarm sounds
5 times per time,
after 2 seconds,
same beeps
again.
（The alarm is
beeping
repeatedly
）
The load AC exceeds the
nominal power by 120%.
Short circuit in
connection.
1. The starting power of the electrical equipment is too high and
it is confirmed whether the starting power of the electrical
appliance exceeds the maximum continuous power of the
inverter.
2. Reduce load.
3.
Disconnect the electrical outlet from the inverter output
outlet and restart the inverter. If you are working normally,
you need to check whether there is a short circuit in the
connected load appliance or line.
Output voltage
below 100V AC?
A True RMS voltage
meter is required to
properly measure output
voltage of modified wave
inverter
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.
The alarm sounds
4 times per time,
after 2 seconds,
same beeps
again.
Inverter overheating 1. Check that the fan is working correctly, Try again when the
inverter has been cool down.
2. Keep the inverter in good ventilation and heat dissipation.
17. HOW MANY WATTS DO YOU NEED?
To select an inverter that has enough power for your application, add the watts for items you may want to run at the
same time. Use the total wattage, plus 20%, as your minimum power requirement.
Note: The wattage's given below are estimates. The actual wattage required for your appliances may differ from those
listed. Check the nameplate on the appliance to determine the actual wattage required.
* Appliances and tools with induction motors (marked * in tables) may require from 3 to 7 times the listed wattage when
starting. The start-up load of the appliance or tool determines whether an inverter has the capability to power it. Be sure
to check the specific wattage requirements and operating instructions for appliances / tools to be used. Also, air
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