Why won't my CyberPower UPS turn on?
- BBrandon StevensAug 17, 2025
If your CyberPower UPS will not turn on, there are several potential causes. First, the on/off switch may be preventing rapid cycling, so turn the UPS off, wait 10 seconds, and then turn it back on. Also, make sure the unit is properly connected to a 120V 60Hz outlet. If those aren't the issue, the battery may be worn out, or there may be a mechanical problem. Finally, the frequency may be beyond 47-63Hz, so ensure the frequency range is within 47-63Hz, or turn on with battery mode.