Fault database
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TRI-PK-DISPTritium · PK350 · DC Fast Chargers solo+Dispenser UI no boot
PK dispenser UI no boot — HMI/SBC path while power cabinet may still be alive. Field techs should correlate HMI/Cloud ti…
TRI-PK-PWRTritium · PK350 · DC Fast ChargersEarly access pro+Rectifier stage fault
PK rectifier stage fault — early-access HV power stage; LOTO and OEM diagnostics. Field techs should correlate HMI/Cloud…
TRI-PK-NETTritium · PK350 · DC Fast ChargersEarly access pro+Cellular failover flapping
PK cellular failover flapping — early-access modem/SIM/DNS path before board RMA. Field techs should correlate HMI/Cloud…
TRI-PK-GUNTritium · PK350 · DC Fast Chargers solo+Gun temperature derate
PK gun temperature derate — handle/contact heat or sensor; sun and damaged guns rank high. Field techs should correlate …
TRI-RTM-GFTritium · RTM75 · DC Fast ChargersFree sampleRTM ground fault
RTM ground fault — air-cooled RTM: moisture/cable/PE; do not bleed coolant on RTM air path. Field techs should correlate HMI/Cloud timestamps with PK liquid-cooled path vs RTM air-cooled path changes isolation and thermal triage.
TRI-RTM-FANTritium · RTM75 · DC Fast Chargers solo+Inlet fan blocked
RTM inlet fan blocked — thermal path on air-cooled RTM; clean inlet before sensor swaps. Field techs should correlate HM…
TRI-RTM-AUTHTritium · RTM75 · DC Fast Chargers solo+Auth timeout local list empty
RTM auth timeout local list empty — offline auth cache/CSMS list, not power electronics. Field techs should correlate HM…
TRI-RTM-CANTritium · RTM75 · DC Fast ChargersEarly access pro+Internal CAN bus error
RTM internal CAN bus error — early-access internal comms; reseat/OEM. Field techs should correlate HMI/Cloud timestamps …
BTC-HP-ISOBTC Power · HP150 · DC Fast ChargersFree sampleHP150 isolation trip
BTC HP150 isolation trip — cable/moisture/ISO path on HP family before power-module crates. Field techs should correlate HMI/Cloud timestamps with HP family often needs power-cabinet vs dispenser CAN check before module swap
BTC-HP-NACSBTC Power · HP150 · DC Fast Chargers solo+NACS adapter path fault
BTC HP NACS adapter path fault — adapter/port thermal or proximity before CCS stack blame. Field techs should correlate …
BTC-HP-DOORBTC Power · HP150 · DC Fast Chargers solo+Service door switch bounce
BTC HP service door switch bounce — interlock chatter after service; never jumper. Field techs should correlate HMI/Clou…
BTC-HP-PFCBTC Power · HP150 · DC Fast Chargers solo+Input PFC fault
BTC HP input PFC fault — grid/PFC stage under load; correlate site voltage. Field techs should correlate HMI/Cloud times…
BTC-HP-OCPPBTC Power · HP150 · DC Fast Chargers solo+OCPP reconnect storm
BTC HP OCPP reconnect storm — Soft-offline reconnect loops; backhaul/config before boards. Field techs should correlate …
KEM-SAT-LINKKempower · Satellite · DC Fast ChargersFree sampleSatellite link to power unit lost
Kempower Satellite link to power unit lost — satellite/dynamic pool link before condemning the dispenser. Field techs should correlate HMI/Cloud timestamps with Satellite dynamic power pool — confirm module pool assignment before condemning a stall
KEM-SAT-DYNKempower · Satellite · DC Fast ChargersEarly access pro+Dynamic power allocation stuck
Kempower dynamic power pool fault — early-access pool assignment/module map issues. Field techs should correlate HMI/Clo…
KEM-SAT-CCSKempower · Satellite · DC Fast Chargers solo+CCS session abort mid-ramp
Kempower CCS session abort mid-ramp — handshake/current share under dynamic pool assignment. Field techs should correlat…
KEM-SAT-COOLKempower · Satellite · Liquid cooling solo+Cabinet coolant pressure low
Kempower cabinet coolant pressure low — cooling loop/pressure before module RMA. Field techs should correlate HMI/Cloud …
KEM-SAT-RFIDKempower · Satellite · DC Fast Chargers solo+RFID reader miswired after service
Kempower RFID reader miswired after service — auth path vs energy path. Field techs should correlate HMI/Cloud timestamp…
CAB-PINSite stack (generic) · Cables & connectors solo+CCS pin burnt
CCS pin burnt — overheating/arcing damage on power pins from high resistance or partial latch. site-generic field note: …
DEL-UFC-GFDelta · UFC100 · DC Fast ChargersFree sampleUFC ground fault
Delta UFC100 dispenser trips ground fault mid-session or during CableCheck, most often after rain, wash-down, or a recent cable service call. HMI banner reads Ground Fault while OCPP reports Faulted/GroundFailure; the fault can lock a single gun or take the whole cabinet Unavailable if the sensing sits upstream of the split.
DEL-UFC-COMDelta · UFC100 · DC Fast ChargersFree sampleBackend unreachable
Delta UFC100 loses its link to CSMS/cloud while the local HMI may still show Ready or Available, creating a mismatch where drivers see a working screen but the backend lists the station offline or flapping. Heartbeat gaps and delayed StatusNotification are the giveaway; sessions started locally may not sync until the link recovers.
DEL-UFC-FANDelta · UFC100 · DC Fast Chargers solo+Exhaust fan fault
Delta UFC100 exhaust fan fault raises internal cabinet temperature during high-power sessions, first showing as a derate…
DEL-UFC-LOCKDelta · UFC100 · DC Fast Chargers solo+Connector lock motor fail
Delta UFC100 connector lock motor fails to latch or release the CCS handle, leaving a session unable to start or a cable…
AUT-MC-ISOAutel · MaxiCharger DC · DC Fast ChargersFree sampleMaxiCharger isolation
Autel MaxiCharger DC fails isolation/CableCheck on one connector while the peer port on the same dual-standard unit stays healthy. Because MaxiCharger DC often pairs a CCS and NACS port from a shared cabinet, techs must confirm which physical port and which cable actually failed before assuming a cabinet-wide isolation fault.
AUT-MC-NACSAutel · MaxiCharger DC · DC Fast ChargersFree sampleNACS port latch
Autel MaxiCharger DC's NACS port latch fails to lock or won't release, either preventing a session from starting because the vehicle never confirms a locked connector, or trapping the cable in the vehicle inlet after the session ends. Drivers often report a buzzing sound or visible resistance when inserting the NACS handle.
AUT-MC-APPAutel · MaxiCharger DC · DC Fast Chargers solo+App start fails OCPP ok
Autel MaxiCharger DC app-initiated sessions fail to start while OCPP Heartbeat continues normally to the CSMS, meaning t…
AUT-MC-THERMAutel · MaxiCharger DC · DC Fast ChargersFree samplePower stage overtemp
Autel MaxiCharger DC power stage overtemp shows up as a progressive derate during sustained high-power sessions, escalating to a full Faulted stop if airflow or ambient conditions don't improve. This is most common in summer at sites with blocked intake filters, undersized clearance around the cabinet, or back-to-back long sessions with little cooldown between them.
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…