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Why does my Smart-UPS 15k/20k indicate "System failure Detected by Surveillance"?


"System failure Detected by Surveillance"

Product Line:

Smart-UPS Online


All SURT15k/20k models, All Serial Numbers


"System failure Detected by Surveillance" is a general system fault. It may sometimes be caused by improper wiring during a startup, but can also appear during normal operation. It is frequently accompanied by other fault messages that will more clearly indicate the actual issue.


Inspect wiring if unit is a new install. Troubleshoot any other reported faults/errors. If issue persists, contact APC support. 
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