Beeping twice every 15-45 seconds: The problem with beeping twice noise is usually an indicator that the CyberPower unit is running on battery power only.UPS systems are designed to make beeping noises to alert users that the UPS is having difficulties by providing quick responses to specific issues. Verify that the data line from the wall outlet is connected toĬonnect the utility power cord from the modem into one of theīattery Backup+Surge Protection outlets on the Back-UPS.Reasons why your CyberPower product might beep: The internet connection is lost during a power outage. There is no network/DSL/FAX/ modem signal from the The connection from the Back-UPS to the Network/DSL/Modem/FAX is lost Contact APC at the Web site to order replacement batteries. As a battery ages, the runtime capability decreases. Leave the Back-UPS connected to utility power for 16 hours while the battery charges to full capacity. The battery is near the end of useful life The Back-UPS has an inadequate battery runtime Call a qualified electrician to correct the building wiring fault. The building wiring presents a shock hazard that must be corrected by a qualified electrical.ĭo not operate the Back-UPS. The Building Wiring Fault LED illuminates When utility power is restored the battery will recharge. At this point the user should save all open files, and shutdown the computer. The Back-UPS battery is near a total discharge state. The Back-UPS battery has approximately two minutes of remaining runtime. The Power On LED flashes once every second while the Back-UPS beeps once every second The Back-UPS is operating normally on battery power. The Back-UPS is operating on battery power. The Power On LED is illuminated and the Back-UPS beeps 4 times every 30 seconds It is not intended for use with motor driven equipment.Ĭontact APC Technical Support for more in depth troubleshooting. The output waveform is intended for computers and peripheral devices. PowerChute software has performed a shutdown due to a power failure.Ĭonnected equipment does not accept the step-approximated sine waveform from the Back-UPS. The Back-UPS battery is completely discharged.Ĭonnect the Back-UPS to utility power and allow the battery to recharge for eight hours. One at a time reconnect equipment to the Back-UPS. Remove all nonessential equipment connected to the outlets. (990-3952C)Ī Back-UPS overload condition has occurred. Refer to the “Connect the Battery” on page2 of the user manual. The Back-UPS is on, the Replace Battery LED flashes and the unit emits a constant tone Press and hold the Power On button until the Back-UPS emits two beeps. In the event that the Back-UPS receives no utility power and the battery is connected, a cold-start can be initiated. Refer to “Connect the Battery” on page 2 of the user manual. Where applicable, check that the wall outlet is switched on.Ĭonnect the battery. Make sure the power cord is securely connected to the wall outlet, and that there is utility power available at the wall outlet. The Back-UPS is not connected to utility power, there is no utility power available at the wall outlet, or the utility power is experiencing a brownout or over voltage condition. This document will assist you with basic troubleshooting steps. This may be due to a malfunction, configuration issue, or the install environment. What are the basic troubleshooting steps for the Back-UPS ES model BE750G / BE750G-CN & BE750G-LM?īE750G, BE750G-CN, BE750G-LM, All Serial Numbersĭuring normal operation, you may find your UPS not functioning as expected.
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