APC C5BLK owner manual Wiring OK Indicator LED is not illuminated

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“Wiring OK Indicator” LED is not illuminated.

Probable Cause: There are 3 reasons why this LED would not be illuminated:

1.Reversed polarity exists at the wall outlet.

2.Neutral wire is overloaded.

3.Earth ground is missing at the wall outlet.

Solution: Operating the unit under such conditions may impact its surge protection performance. Contact an electrician to have them inspect the building or home wiring to ﬁx the problem.

Probable Cause: Unit is on but LEDs are turned off.

Solution: Push the Power button, push the Select button twice (turns the unit off and back on again). The LEDs should illuminate.

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Contents Type Power Filter Models C5 and C5BLK Page Safety Information Ground Clamp Antenna Lead-In Wire Safety Symbols Class B Labeling Features Page Introduction Proven Expertise…Proven ReliabilityPackage Contents Safety PrecautionsUnit Power Capacity Isolated Noise Filter Banks Infb FeaturesSurge Protection OutletsTop Panel Controls and Indicators Top PanelFiltering Status Indicator Wiring OK Status IndicatorProtection On Status Indicator Overload Status IndicatorOutlet Panel and Side Panel Outlet PanelAC-Powered Outlets Side Panel Controls and Indicators C5 Side Panel ConnectorsCircuit Breaker Surge Protected COAX/RF ConnectorsAdditional Surge Protected COAX/RF Connectors Surge Protected Telephone JacksMake Connections InstallationApply Power Dimming of the C5 DisplayTechnical Speciﬁcations SpeciﬁcationFederal Communications Commission FCC Compliance Information Troubleshooting Unit will not turn onWiring OK Indicator LED is not illuminated