Please contact APC Customer Care for further assistance. Beeps are usually done by BIOS to tell us what is wrong with the computer. If the clicking sound from your computer keeps continuing even after entering the Safe Mode, then its most like caused by hardware related issues. Procedures for input sensitivity adjustment can be found in the User Manual and in the videos below (for select series of Back-UPS models). If your Dell computer that beeps at start-up, use this video to see why. Restart the computer and check if still your computer’s making a clicking noise, then its most likely a hardware issue. It is recommended that you contact an electrician for further assistance in identifying the source of the issue. If your unit continues to click following this sensetivity adjustment, you may have an electrical input issue from the provider or power sags from high current loads connected into or nearby the UPS. Reducing your Back-UPS' input power sensitivity may allow it to operate with less or no audible clicking. If the clicking becomes frequent, there may be issues with incoming power. Boost or Trim can last as long or short as the brownout or overvoltage condition will last. This is proper operation of the UPS.īoost and Trim are Automatic Voltage Regulation features where the UPS will either boost or trim the power to protect brownout or overvoltage conditions respectively. The relay switches when Intelligent Battery Management features such as Boost and Trim are initiated and when the UPS switches to battery. The relay inside the UPS may be audible in some environments. What does it mean when my Back-UPS clicks randomly throughout the day?
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