APC C2C User Manual download pdf (Page 18)

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WIRING OK indicator LED is not illuminated

APC Technical Support

If a problem cannot be resolved contact APC Technical Support.

Telephone 1-888-88APCAV, or visit: www.apcav.com

Probable Cause: There are three reasons why the

WIRING OK 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 these

conditions may affect its surge

protection performance. Contact an

electrician to inspect the building

wiring, or your home wiring, to correct

the problem.

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APC C2C User Manual Page 18