CyberPower PR1000RT2UC User Manual - Page 16

LCD OPERATION GUIDE (continued) Fault Warning Display and Alarm The following table shows the fault and warning indications of the UPS. The warning message cycles when the UPS is still turned on. Refer to the error code below and take necessary measures. After the UPS shuts down or is turned off manually, the error message could disappear but the event records can be found in the Log Menu. To safely check the logs, press the power switch once and then press the Esc button to enter another operation mode - Standby Mode. Press Menu button and go to Log Menu to do a check. Note: When the UPS is in Standby Mode, it does not have output. All indicators will not illuminate and only the display screen lights up when the UPS is operated. To leave the Standby Mode, refer to BASIC OPERATION section to turn on the UPS. Or you can disconnect the UPS from the AC power source, wait for a minute, and then UPS will completely become off. Display Screen Line 1 UPS Fault! UPS Fault! UPS Off! UPS Off! Warning! / UPS Off! Warning! Warning! UPS Off! Warning! Warning! Warning! Warning! Warning! Warning! Warning! Display Screen Line 2 E01-Overcharge: Contact CyberPower for repair. LED Indicator E03-No Charge: Contact CyberPower for repair. E20-Output Short: Connected equipment may have problems, remove them and check. E21-Output Short: Connected equipment may have problems, remove them and check. E22-Overload: Unplug at least one connected device. E23-Over Temp.: Turn off the unit and check ventilation. E24-Over Temp.: Turn off the unit and check ventilation. E25-EPO: Check the EPO connector status. E27-Fan Fail (FR): Contact CyberPower for repair. E27-Fan Fail (FL): Contact CyberPower for repair. E29-Fan Fail (B): Contact CyberPower for repair. Battery Disconnected: Check battery wiring and condition. Battery Defect: Check battery wiring and condition. Service Battery: Batteries have reached recommended maintenance period. Wiring Fault: Check utility wiring and ground. - (Flashes) (Flashes) - Alarm Beeps once every 2 seconds* - Beeps for 3 seconds Beeps for 3 seconds Constant alarm* Beeps once every 2 seconds* Beeps once every 2 seconds* - - Beeps once every 2 seconds for a period of 30 seconds* Beeps once every 2 seconds for a period of 30 seconds* - - *Press any button to cancel the alarm. 15