APC back-UPS building wiring fault light is dimly lit.

BottlingCaps

Honorable
Nov 29, 2013
2
0
10,510
Hi everyone I have two APCs 550s and I just bought a APC 700, the weird thing is that the building wiring fault light is barely lit on the new APC 700 and not on the other ones even if I plug them onto the same outlet. Could it be a bad battery backup I just bought? or am I making to much out of that dim light when in reality should be bright red? because both my other back ups aren't detecting the fault.

thanks for any help