Njoy Helios PRO Series User Manual page 20

Helios PRO 3000
Step 5. Remove adhesive
tapes.
Step 7. Put assembled
battery packs on one side
of plastic shells.
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Step 6. Connect all
battery terminals by
following below chart.
Step 8. Cover the other
side of plastic shell as in
the below picture.
7 Troubles and solutions
Problem Possible Cause
The AC input
power is not
connected well.
No indication and alarm
even though the mains is
normal.
The AC input is
connected to the
UPS output.
The icon and the
warning code are
EPO function is
flashing on LCD display activated.
and alarm is sounding
every second.
The icon and the
Line and neutral
warning code are
conductors of UPS
flashing on LCD display
input are reversed.
and alarm is sounding
every second.
The icon and
The battery
are flashing on LCD
is incorrectly
display and alarm is
connected.
sounding every second.
Fault code is shown as 27
and the icon
Battery voltage
is lighting on LCD display
is too high or the
and alarm is continuously
charger is fault.
sounding.
Solutions
Check if input
power cord is firmly
connected to the
mains.
Plug the AC input
power cord to the
AC input correctly.
Set the circuit in
closed position
to disable EPO
function.
Rotate mains power
socket by 180 and
then connect to UPS
system.
Check if all
batteries are
connected well.
Contact your dealer.
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