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Introduction |
| This guide outlines steps needed to repair an Ubiquiti Unifi AP AC Lite (model UAP-AC-LITE) access point which '''does not power on''', and is identified by the PoE injector has having a power fault. (Blinking white on the PoE injector.) | | The UAP-AC-LITE contains an over-voltage protection circuit driven by a unidirectional TVS diode. While this diode is not a fuse, it's expected failure mode is to short, and diverts all power away from the rest of the hardwareboard. This alsoshort is also detected by the PoE injector, which shuts offcauses it to not deliver power entirely. | | | In this guide will show how to: | | | # Disassemble the UAP-AC-LITE | | # Test if the over voltage protection TVS diode has failed | | # Remove and replace the broken diode |
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