Fault database
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SIE-SD-METSiemens · Sicharge D · DC Fast Chargers solo+MID meter fault
Siemens Sicharge D's MID fiscal meter reports a fault that either blocks billed sessions entirely or produces incorrect …
SIE-SD-HMISiemens · Sicharge D · DC Fast Chargers solo+Touch HMI unresponsive
Siemens Sicharge D's touch HMI goes unresponsive or black while the station may continue reporting normally to OCPP, mea…
PE-NB-ISOPower Electronics · NB 360 · DC Fast ChargersFree sampleNB360 isolation
Power Electronics NB360 fails isolation during CableCheck, and because the NB360 cabinet uses a multi-module current-share architecture, technicians must confirm whether the fault traces to a single module's contribution or the shared measurement path before opening the whole cabinet. Cable moisture and single-module contamination are the two leading field causes.
PE-NB-MODPower Electronics · NB 360 · DC Fast ChargersEarly access pro+Module communication loss
Power Electronics NB360 loses communication with one power module in the bank, causing current-share calculations to fai…
PE-NB-COOLPower Electronics · NB 360 · Liquid cooling solo+Cooling pump Contactor chatter
Power Electronics NB360's cooling pump or an associated contactor exhibits audible chatter accompanied by flow-related f…
PE-NB-GRIDPower Electronics · NB 360 · DC Fast Chargers solo+Input phase loss
Power Electronics NB360 loses an input grid phase, faulting the cabinet in a way that can superficially resemble a modul…
WB-PP-GFCIWallbox · Pulsar Plus · AC Level 2Free samplePulsar GFCI trip
Wallbox Pulsar trips GFCI/RCD during rain, wash-down, or cable handling. App/HMI shows ground-fault or protection trip; breaker may also open. Session will not restart until the protective device is reset and the moisture/insulation cause is cleared—not just the reset button mashed.
WB-PP-WIFIWallbox · Pulsar Plus · AC Level 2 solo+Wi-Fi drop loses schedule
Wallbox Pulsar Plus drops its Wi-Fi connection: scheduled charging and cloud-based authorization stop working while a lo…
WB-PP-CPWallbox · Pulsar Plus · AC Level 2 solo+CP state fault no EV
Wallbox Pulsar Plus reports a control-pilot state fault with no vehicle plugged in, or the unit never advances past Stat…
BLK-IQ-RELAYBlink · IQ 200 · AC Level 2Free sampleIQ200 relay welded
Blink IQ200 reports a welded or stuck main relay, or fails its weld-detect self-check, typically right after a hard fault-current event or years of high-cycle depot duty. The stall latches Faulted and stays there — FreeVend and app-initiated sessions are both blocked — while neighboring pedestals on the same pad usually keep working normally, which helps rule out a site-wide power event.
BLK-IQ-NETBlink · IQ 200 · AC Level 2 solo+Blink network offline
Blink IQ shows the pedestal offline in the Cloud portal while the physical unit may still illuminate normally and even a…
BLK-IQ-RFIDBlink · IQ 200 · AC Level 2 solo+RFID intermittent
Blink IQ's RFID reader works intermittently: some taps produce a beep with no Authorize response, other cards fail consi…
FLO-ST-METFlo · Smart Two · AC Level 2 solo+Smart Two meter error
Flo Smart Two reports a meter/measurement error mid-session or at start: the app or station LED shows a metering fault, …
FLO-ST-AUTHFlo · Smart Two · AC Level 2 solo+Auth card not accepted
Flo Smart Two rejects RFID card or app authorization with a 'card not accepted' message while the station otherwise show…
FLO-ST-TEMPFlo · Smart Two · AC Level 2 solo+Overtemp enclosure
Flo Smart Two derates or trips to Faulted with an overtemperature message during full-sun exposure or when enclosure ven…
EVB-LV-COMEVBox · Livo · AC Level 2 solo+Livo OCPP disconnect
EVBox Livo drops off the CSMS intermittently: Cloud shows Offline or repeated reconnects while the pedestal's local LEDs…
EVB-LV-RCDEVBox · Livo · AC Level 2 solo+RCD trip nuisance
EVBox Livo's residual current device opens on plug-in, during rain, or mid-session, then resets and holds briefly before…
EVB-LV-LOCKEVBox · Livo · AC Level 2 solo+Cable lock stuck
EVBox Livo's cable lock actuator either stays engaged after a session ends, trapping the connector in the vehicle, or fa…
SCH-EV-GFSchneider Electric · EVlink · AC Level 2Free sampleEVlink ground fault
Schneider EVlink trips its ground-fault/residual-current protection during rain, wash-down, or shortly after cable handling, and the fault often recurs on reset in commercial installs where the EVSE shares a panel and bonding path with other loads. A trip that follows the cable when swapped, or that clears dry and holds, narrows the cause quickly before an electrician is called for panel-level bonding work.
SCH-EV-PHASESchneider Electric · EVlink · AC Level 2 solo+Missing phase on 3P install
Schneider EVlink on a three-phase install reports a missing or unbalanced phase after panel or breaker work: the unit ei…
SCH-EV-CFGSchneider Electric · EVlink · AC Level 2 solo+Wrong max current config
Schneider EVlink either trips its upstream breaker repeatedly or delivers charging stuck at an unexpectedly low amperage…
WB-PP-PENWallbox · Pulsar Plus · AC Level 2 solo+PEN fault UK-style
UK-style Wallbox Pulsar Plus units with PEN-fault protection trip or inhibit charging entirely when the supply's protect…
BLK-IQ-BOOTBlink · IQ 200 · AC Level 2 solo+Boot loop after update
Blink IQ200 boot-loops immediately after a firmware update: the power LED cycles repeatedly, the unit never reaches Avai…
FLO-ST-PILOTFlo · Smart Two · AC Level 2 solo+Pilot diode fail
Flo Smart Two fails the control-pilot handshake: the unit never leaves State A/B and the display or app shows a pilot/di…
EVB-LV-LOADEVBox · Livo · AC Level 2 solo+Load balance zero amps
EVBox Livo authorizes a session normally but delivers 0 A during peak periods, then resumes charging on its own once dem…
SCH-EV-HMISchneider Electric · EVlink · AC Level 2 solo+LED status stuck red
Schneider EVlink's front-panel LED stays solid or flashing red while the Cloud/CSMS status shows Faulted or Available in…
BESS-UVFluence / BESS · BESSFree sampleBESS undervoltage at cabinet
Fluence BESS reports an undervoltage (UV) inhibit at the EVSE feed — either the PCS AC output or the shared DC bus — so dependent chargers brown out mid-session or latch Faulted while the BESS HMI independently alarms UV. It shows up most on hot afternoons when several dispensers ramp together and SOC is already drawn down from an overnight fleet pull, so the first minutes of triage are about proving whether the EVSE is really broken or the depot just asked for more than the BESS could deliver at that SOC.
BESS-OVFluence / BESS · BESS solo+BESS overvoltage trip
Fluence BESS overvoltage (OV) protection trips and opens the discharge/charge path feeding the EVSE bus, so dependent di…
BESS-INTFluence / BESS · BESS solo+BESS interlock open
A BESS interlock — door switch, E-stop, or maintenance key — is open and removing EVSE feed permission, so chargers appe…
BESS-THERMFluence / BESS · BESS solo+BESS thermal runaway alarm
The BESS reports a thermal runaway alarm or a critical thermal inhibit that locks out the EVSE feed and may trigger the …
BESS-COMFluence / BESS · BESS solo+BESS EMS comms loss
The BESS EMS loses communication with the PCS, site network, or historian, and depending on the failsafe configuration t…
BESS-SOCFluence / BESS · BESS solo+SOC floor blocks EVSE feed
The BESS SOC floor is blocking EVSE feed exactly as designed — the system will not discharge below its configured minimu…
SWG-TRIPEaton · SwitchgearFree sampleFeeder breaker trip charging peak
The Eaton feeder breaker serving the depot trips right at a charging peak, taking multiple EVSE units Faulted or fully dark at once — the breaker handle sits mid-trip when you find it, and idle voltage checks looked completely normal before the peak, which is exactly the pattern that sends techs chasing individual charger faults instead of the shared feeder that actually failed.
SWG-GFEaton · Switchgear solo+Switchgear ground fault
Switchgear ground-fault protection trips and takes down the entire depot feed at once — the GF relay or breaker's ground…
SWG-XFMREaton · Switchgear solo+Transformer overtemp
The site transformer serving the depot runs into overtemperature right at charging peak — cooling fans are audibly runni…
SWG-ARCEaton · Switchgear solo+Arc-flash relay trip
An arc-flash relay trip has opened the switchgear and taken the entire site dark, with the light- and/or pressure-based …
SWG-PFEaton · Switchgear solo+Power factor / harmonic trip
Power factor or harmonic distortion protection trips, or the utility flags a power quality complaint, and the timing lin…
SWG-DOOREaton · Switchgear solo+Gear door interlock
A switchgear door interlock is preventing the breaker from closing, or has tripped the gear into an inhibited state, so …
CMS-AUTHAmpcontrol · Fleet CMSFree sampleFleet CMS driver auth fail
A driver's credential or fleet app is rejected by the Ampcontrol CMS even though the charger hardware and OCPP path both look completely healthy — other drivers may authorize and charge normally at the exact same stall within minutes, which is the clearest signal that this is an enrollment or mapping problem in software rather than a reader or connector fault.
CMS-SESSAmpcontrol · Fleet CMS solo+Session not created in CMS
A charging session actually delivers energy at the stall, but the Ampcontrol CMS never creates a corresponding session r…