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L. PROTECTION FUNCTION
1) Input Under-Voltage Alarm: When the input DC voltage is lower than 9.8V /19.6V, the buzzer will whistle
intermittently to remind that the inverter will go into the under voltage protection.
2) Under Voltage Protection: The inverter will automatically shut down when the input DC voltage is lower
than 9.5V/19V. The buzzer will whistle continuously and the green light is off, red light is on. Please turn
off the inverter and use it after recharging the battery.
3) Over Voltage Protection: The inverter will automatically shut down when the input DC voltage is higher
than 16V/32V. The buzzer will whistle continuously and the green light is off, red light is on. Please turn
off the inverter and adjust the input voltage to the admissible range.
4) Overload Protection: The inverter will automatically shut down when the load is higher than the rated
power. The buzzer will whistle continuously. Turn off the inverter and resume to normal operation after
taking away the excessive load.
5) Short-Circuit Protection: The AC output will be automatically shut down when short circuited. It will
automatically reset after the problem is solved.
6) Thermal Protection: The unit will get hot during operation. If the temperature is higher than 149°F, the
inverter will automatically shut down. Then the buzzer will whistle continuously and the green light is off,
red light is on. Please turn off the inverter, and continue using it after the temperature goes back to
normal naturally. Meanwhile find out the factors causing the fault, such as ventilation, ambient tempera-
ture, vent, load power etc. It can avoid similar things from happening again.
M. TROUBLESHOOTING TIPS
Problem
Reason
Low Input DC Voltage
No output voltage,
High Input DC Voltage
buzzer whistles
continuously
Overload
Over temperature
1. The power switch is off.
No AC output voltage?
2. Poor contact with battery.
Output voltage below
"True RMS" voltage meter is required to
100 V AC?
properly measure output voltage of modified
wave inverter
1. Load power is too large. Or the actual
power of the appliance exceeds nominal
power.
2. The starting power is larger than rated
Cannot drive the load?
power (especially for appliances with
motor)
3. Battery is too small.
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.
Tester indicated
it would be impossible to do so in a boat or
"Open Ground"?
car while moving. The power inverter DOES
NOT and cannot create a true Earth ground
on its own.
7
Solutions
Low Input DC Voltage
● 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.
● 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.
● 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.
● 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.
● Don't need the tester to do the Grounding Test.
● Refer to the manual to do the Grounding
Problem
Reason
The main reason is that ths instantaneous
current is too large, which leads to the
Starting alarm ?
detection of low voltage and trigger
under-voltage alarm.
Got 40V or so while
testing inverter's
This voltage has no meaning, zero line can
ground wire and
be ground.
zero line?
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 after service.
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:
support@giandel.com.au
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
GIANDEL.
Except as noted above, GIANDEL makes no warranty of any kind, express or implied, including without
limitation the implied warranties of merchantability and fitness for a particular purpose. In no event shall
GIANDEL be liable for indirect, special or consequential damages. This warranty only applies to GIANDEL
branded products. All other name brand products are warranted by and according to their respective
manufacturer. Please do not attempt to return non-GIANDEL branded products to us.
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:
support@giandel.com.au .
Welcome to use GIANDEL power inverter. If you have any query during using our
inverter, please contact our service team by email:
support@giandel.com.au
English
Solutions
Please restart the inverter several times.
This is normal, there is no current leakage.
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