Trouble Shooting; Checking Ups Status; Adjust The Factors Caused The Problem - AEC IST3010 User Manual

10. Trouble shooting

This section describes checking the UPS' status. This section also indicates various UPS
symptoms a user may encounter and provides a troubleshooting guide in the event the UPS
develops a problem. Use the following information to determine whether external factors
caused the problem and how to remedy the situation.

10.1 Checking UPS status

It recommended that checking the UPS operation status every six months.
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Check whether the UPS is faulty: Is the Fault Indicator on? Is the UPS sounding an
alarm?
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Check whether the UPS is operating in Bypass mode. Normally, the UPS operates
in Normal Mode. If it is operating in Bypass Mode, stop and contact your local
representative, or Channel Support.
l
Check whether the battery is discharging. When the utility input is normal, the
battery should not discharge. If the UPS is operating in Battery Mode, stop and
contact your local representative, or Channel Support.

10.2 Adjust the factors caused the problem

When the fault indicator is on, press FUNC button to see the fault code and warn code. Fault
and warn codes are listed as following:
Code Event
7 Warn: Battery not
connected or weak
battery
10 Warn: EPO
16 Warn:
voltage abnormal
18 Warn: Line neutral
wires reversed/PE
not grounded
Possible cause
Battery not connected
or weak battery
Emergency power off
Input Utility is failure
Input surge protector
opens
Input Line and neutral
is reversed
PE wire
connected correctly in
UPS
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Solution
Check
replace the batteries
Short the EPO terminal 1&2 to
activate EPO
/
If utility is normal but rectifier is not
working, reset input surge protector
Check the polarity of line wire and
neutral wire
is not Check if PE on input plug is shorted
with UPS rear panel. If not ,contact
with distributer or service center. If
yes, please check PE wire in input
power socket
Trouble Shooting
battery connections or
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