
How to Replace the Fuse
After Use
After you have finished using the inverter (or when the inverter is not in use), turn off the unit and
make sure your vehicle’s fully switched off.
Then, turn the unit off and then disconnect the inverter from the 12V power supply. When discon-
necting from the battery, disconnect the negative cable first, followed by the positive cable.
Best Practices for Protecting Your 12V Battery
• To prevent your vehicle’s 12V battery from being depleted. We recommend running the engine for 10 to
20 minute to recharge the battery after using the inverter for 2 to 3 hours. Important: Before starting your
vehicle’s engine, please disconnect the inverter from your battery/power supply.
• When connecting the inverter to your battery’s terminals, it is important that you connect it via the correct
polarity (i.e. Connect + from inverter to + of battery terminal and connect – from inverter to – of battery
terminal) to prevent reverse polarity.
• When you are using the inverter and you hear a beeping sound coming from the inverter, this means your 12V
battery is low. To recharge, disconnect the inverter from your battery and turn on the engine for 2 to 3 hours.
• When charging your 12V battery using a battery charger, please disconnect the inverter.
If the unit stops working, and you see a red LED light and/or you hear an audible beeping.
Then you will need to check to see if any of the fuses are working, and replace any blown
fuses if necessary.
PLEASE NOTE: In total, there are 3 x 35amp fuses
To check & replace the fuse, please follow the instructions below:
1. Locate the fuses as shown in the figure above. Use a suitable pair of tweezers to take
the fuse out so you can check/replace as necessary. Please note, you can check the
fuse size when you take out the fuse.
Fig. 1
Troubleshooting
What To Do When The Inverter Is Not Working
Troubleshoot/Problem Possible Cause Suggested Solution
No AC out - the green LED light
is not coming on
DC input is below 10V Recharge or replace the
battery
No AC output - the inverter is
cold
Poor connection with the
battery
Switch off vehicle & discon-
nect inverter from battery.
Then reconnect the inverter to
the battery, check to see if the
connection is correct.
Inverter shuts down after using
the unit for a long time
Overheat Switch off vehicle & discon-
nect inverter from battery.
Allow the unit to cool down for
15 mins before reconnecting.
Inverter shuts down after oper-
ating for a short time
Overload The appliance wattage require
may be too high
Red LED light &/or audible
beeping
Fuse could have been blown Check and replace the fuse.
See Replacing the Fuse.
Measuring The AC Voltage
Safety Features
The output waveform of the AC output is a MODIFIED SINE WAVE. To measure the AC
output voltage, you must have a TRUE RMS VOLTMETER.
Feature Explanation
Anodized Aluminium Casing Prevents corrosion & wear. The case effectively
protects the inverter’s interior elements.
Low Battery Alarm Sounds when your 12V battery is low. To
resolve, disconnect the inverter from battery/
power supply and recharge the battery.
Built-in Cooling Fan The built-in cooling helps to prevent overheating
during use.
Overheat Protection After prolonged use (more than 2 to 3 hours),
the inverter will generate heat. This is not a
malfunction of the built-in cooling fan. However,
if the inverter does overheat, after prolonged
use, the unit will automatically shut off for it to
cool down.
Overload/Short Circuit Protection The inverter automatically turns itself off if the
connected load is too high or if it too low
Thermal Protection The inverter’s thermal protection feature pre-
vents it from operating when its temperature
exceeds 60+/-5 °C