iTechworld 3000W - Inverter Beeps 11 Times (AC Short Circuit); Inverter Beeps Continuously (Overload)

there is no AC
output.
exceeds 75°C the AC
output will shut
down.
fan(s) are working
(fans automatically
turn on when the
inverter is at 20%
load or internal
temperatures are at
45°C). If the cooling
fans are not
functioning, the
inverter will need
further assessment,
please contact
iTechworld.
2. If the fan is
functioning, check
that all ventilation
slots and fan
openings are not
obstructed. Also
ensure that
adequate cool air is
being circulated to
the inverter and
make sure ambient
are temperatures
do not exceed 45°C.
3. Reduce the AC load
on the inverter.
The inverter beeps
11 times and the red
Fault Indicator LED
illuminates, and
inverter shuts down
The inverter has
detected a short
circuit with the AC
output.
Please check that the
connected device is not
faulty, and that there are
no short circuits in the
AC circuit. Please consult
a licensed electrician.
The inverter is
beeping
continuously and
the red Fault
The inverter has
shut down due to
overload.
(Connected load has
1. Disconnect the
connected load.
2. Reduce the
connected load.