Owners manual

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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 Setup button, push the Select button two or three times.
The LEDs should illuminate. Choose the dimmer setting (see the sections
on “Front and Rear Panels” and “Setup the H10”).
The Line Boost and Line Trim LEDs are flashing.
Probable Cause: One of the inner relays is welded.
Solution: Remove the input cord and then plug it in again. If the problem
remains, contact APC.
APC Technical Support
If the problem remains unsolved:
• Contact APC Technical Support at 888-88APCAV, or
• Visit www.apcav.com