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User Manual
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© 2020 AMETEK Electronic Systems Protection / Technical Support: 1-800-645-9721 / ametekesp.com
9.0 TROUBLESHOOTING
If the UPS system does not operate correctly, please solve the problem
by using the table below.
Symptom
Possible Cause
Remedy
No indication and alarm
in the front display panel
even though the mains
is normal.
The AC input power is
not connected well.
Check if input cable
firmly connected to
the mains.
The icon
and the
warning code
flash on LCD
display
and alarm beeps every
second.
EPO function is
enabled.
Set the circuit to closed
position to disable
EPO function.
The icon
and
flash on LCD display
and alarm beeps every
second.
The external or internal
battery is incorrectly
connected.
Check if all batteries are
connected well.
The icon
and
flash on LCD display
and alarm beeps twice
every second.
UPS is on overload.
Remove excess loads
from UPS output.
UPS is overloaded.
Devices connected to
the UPS are fed directly
by the electrical network
via the Bypass.
Remove excess loads
from UPS output.
After repetitive
overloads, the UPS is
locked in the Bypass
mode. Connected
devices are fed directly
by the mains.
Remove excess loads
from UPS output first.
Then shut down the UPS
and restart it.
Fault code is shown
as 43. The icon
lights on LCD display
and alarm beeps
continuously.
UPS is overload too
long and becomes fault.
Then UPS shut down
automatically.
Remove excess
loads from UPS
output and restart it.
