173-8. Warning indicatorWarning Icon (flashing) AlarmLow Battery Sounding every 2 secondsOverload Sounding every secondBattery is not connected Sounding every 2 secondsOver ChargeSounding every 2 secondsSite wiring fault Sounding every 2 secondsEPO enable Sounding every 2 secondsOver temperature Sounding every 2 secondsCharger failure Sounding every 2 secondsBattery faultSounding every 2 seconds(At this time, UPS is off to remind userssomething wrong with battery)Out of bypass voltage range Sounding every 2 secondsBypass frequency unstable Sounding every 2 secondsEEPROM error Sounding every 2 secondsFan failure Sounding every 2 secondsBattery replacement Sounding every 2 secondsNOTE: “Site Wiring Fault” function can be enabled/disabled via software. Please checksoftware manual for the details.