Self-Test Refused for unknown reason

[Anonymous user]

Self-Test Refused for unknown reason

[BillP · Accepted solution]

Your NMC web interface is set up to call for a self-test, correct?  If so, what option did you select?  Mine is set to call for the self-test on startup and every fourteen days after the last test.  My log looks like this:

UPS Tests

Test	Result	Date	Source	Cause
Self-Test	Passed	07/26/2017	internal operation	NA
Calibration	Failed	07/26/2017	Aborted	NA

I am not sure what "internal operation" means but I suspect that was when I started the UPS up after powering it down and removing and reinstalling the battery and not the fourteen day scheduling that I set up.  Can you turn the UPS off, remove the battery, and restart the UPS with the load attached and see if the self-test runs to completion?  If not, it could be something with your battery system either having low capacity, etc.