TroubleshootingEaton Advanced ePDU Troubleshooting Guide P-164000140—Rev 1 www.eaton.com/ePDU 7Chassis and InstallationThis section provides chassis and hardware installation troubleshooting for the Advanced ePDU models.Table 3 lists fault conditions, potential causes, and possible troubleshooting actions you can take in responseto problems.Table 3. Chassis and Hardware Installation TroubleshootingProblem Possible Root Cause ActionsKeyhole button: Does not fitintended rack (cannot insert orsupport product)l Keyhole button is designed for moststandard 19-inch racks, but the rackused is different and the wall thicknessdoes not match the keyhole designl Keyhole part is defective1 - Check rack wall thickness and compare to thestandard 19-inch rack. Verify the proper installation forthis ePDU.Indirect mounting using plastic clipfeet on the ePDU back rails (withkeyhole button or cage nutsystems): ePDU is sliding inside therackl Safety screw may have been installedincorrectlyl A safety screw has been designed toprevent slidingNOTE Read the Eaton Advanced ePDUUser’s Guide for further detailsabout the installation procedure.l Clip foot issue1 - Insert the safety screw in one of the tapped holesjust above the top-most plastic clip foot on the ePDU toprevent the ePDU from sliding inside the rack.Indirect mounting using plastic clipfeet (with keyhole button system):Difficulty aligning the keyholebuttons with the rack keyholesl Clip feet and keyhole buttons wereincorrectly pre-assembled on the ePDUbefore rack installation1 - First, try to assemble the clip feet and keyholebuttons. Then, place the two subassemblies in the rackkeyholes. Finally, clip the ePDU inside the installed clipfeet. (You should hear a clicking sound.)2 - If the subassembly is mounted on the ePDU, you canalso align the keyhole button with the ePDU back tappedholes. These holes have the right pitch forstandard 19-inch racks.NOTE If the actions listed in this table do not resolve the problem, contact customer service or a local representative for guidance and/orreplacement (see “Contacting Service and Support” on page 5).Circuit BreakersThis section provides CB troubleshooting for the Advanced ePDU models. Table 4 lists fault conditions,potential causes, and possible troubleshooting actions you can take in response to problems.Table 4. Circuit Breaker TroubleshootingProblem Possible Root Cause ActionsCB makes vibration noise duringcurrent overloading state beforetrippingl Due to the impact of theelectromagnetic field on the CBinternal parts1 - This is normal behavior if overload is present.Reduce the current load on the breaker. This actionshould reduce or eliminate the noise.NOTE If noise persists at or under nominal current, power off your ePDU and contact customer service or a local representative forguidance and/or replacement (see “Contacting Service and Support” on page 5).