Fault database
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OCPP-F01Cross-brand / Protocol · DC Fast ChargersFree sampleStatusNotification stuck Faulted after reboot
StatusNotification stuck Faulted after reboot — CSMS still shows Faulted even though local LEDs look ready, often after a dirty shutdown or uncleared vendor errorInfo. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F01.
OCPP-F02Cross-brand / Protocol · DC Fast ChargersFree sampleHeartbeat timeout to CSMS
Heartbeat timeout to CSMS — station may look Available locally while Cloud shows offline, sessions fail Authorize, or Heartbeat gaps appear in the CSMS timeline. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F02.
OCPP-F03Cross-brand / Protocol · DC Fast ChargersFree sampleAuthorize rejected — invalid idTag
Authorize rejected — invalid idTag — badge/app presents locally but CSMS returns Invalid/Blocked, or local list is stale after prolonged offline. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F03.
OCPP-F04Cross-brand / Protocol · DC Fast ChargersFree sampleStartTransaction never acknowledged
StartTransaction never acknowledged — Authorize succeeded but StartTransaction.conf never returns; session hangs Preparing/Suspended. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F04.
OCPP-F05Cross-brand / Protocol · DC Fast ChargersFree sampleMeterValues missing during session
MeterValues missing during session — energy runs locally but CSMS billing/telemetry shows gaps or zero MeterValues. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F05.
OCPP-F06Cross-brand / Protocol · DC Fast ChargersFree sampleRemoteStart fails while local RFID works
RemoteStart fails while local RFID works — CSMS RemoteStartTransaction rejected or times out though a badge starts fine. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F06.
OCPP-F07Cross-brand / Protocol · DC Fast ChargersFree sampleConnector becomes Unavailable after SuspendEV
Connector becomes Unavailable after SuspendEV — vehicle paused, then charger never returns to Available for the next driver. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F07.
OCPP-F08Cross-brand / Protocol · DC Fast ChargersFree sampleBootNotification rejected — wrong chargePointModel
BootNotification rejected — wrong chargePointModel / identity after board swap or clone config, leaving the charger offline to CSMS. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F08.
OCPP-F09Cross-brand / Protocol · DC Fast ChargersFree sampleFirmware update stalls at downloading
Firmware update stalls at Downloading/Installing — charger stuck non-operative mid-FW with CSMS showing ongoing update. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F09.
OCPP-F10Cross-brand / Protocol · DC Fast ChargersFree sampleDataTransfer vendorId rejected
DataTransfer vendorId rejected — OEM vendor messages fail while core OCPP profile still works, breaking advanced diagnostics or PnC helpers. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F10.
CCS-H01Cross-brand / Protocol · Cables & connectorsFree sampleCCS SLAC timeout
CCS SLAC timeout (CCS-H01) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CCS-H02Cross-brand / Protocol · Cables & connectorsFree sampleSDP failed — SECC not responding
SDP failed — SECC not responding (CCS-H02) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CCS-H03Cross-brand / Protocol · Cables & connectorsFree sampleCable check isolation fail
Cable check isolation fail (CCS-H03) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CCS-H04Cross-brand / Protocol · Cables & connectorsFree samplePrecharge voltage mismatch
Precharge voltage mismatch (CCS-H04) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CCS-H05Cross-brand / Protocol · Cables & connectorsFree samplePower delivery stops at CurrentDemand
Power delivery stops at CurrentDemand (CCS-H05) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CCS-H06Cross-brand / Protocol · Cables & connectorsFree sampleWelding detection trip
Welding detection trip (CCS-H06) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CCS-H07Cross-brand / Protocol · Cables & connectorsFree samplePP resistor out of range
PP resistor out of range (CCS-H07) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CCS-H08Cross-brand / Protocol · Cables & connectorsFree sampleCP state B stuck
CP state B stuck (CCS-H08) — CCS handshake field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
NACS-H01Cross-brand / Protocol · Cables & connectorsFree sampleNACS handshake timeout on adapter path
NACS handshake timeout on adapter path (NACS-H01) — NACS path field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
NACS-H02Cross-brand / Protocol · Cables & connectorsFree sampleNACS proximity detect intermittent
NACS proximity detect intermittent (NACS-H02) — NACS path field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
NACS-H03Cross-brand / Protocol · Cables & connectorsFree sampleNACS thermal derate to zero
NACS thermal derate to zero (NACS-H03) — NACS path field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
ISO-H01Cross-brand / Protocol · Cables & connectorsFree sampleISO 15118 TLS cert expired
ISO 15118 TLS cert expired (ISO-H01) — ISO 15118 / PnC field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
ISO-H02Cross-brand / Protocol · Cables & connectorsFree samplePnC contract authentication fail
PnC contract authentication fail (ISO-H02) — ISO 15118 / PnC field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
ISO-H03Cross-brand / Protocol · Cables & connectorsFree sampleSchedule renegotiation abort
Schedule renegotiation abort (ISO-H03) — ISO 15118 / PnC field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CHA-H01Cross-brand / Protocol · Cables & connectorsFree sampleCHAdeMO CAN timeout
CHAdeMO CAN timeout (CHA-H01) — CHAdeMO field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CHA-H02Cross-brand / Protocol · Cables & connectorsFree sampleCHAdeMO connector lock fail
CHAdeMO connector lock fail (CHA-H02) — CHAdeMO field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
CHA-H03Cross-brand / Protocol · Cables & connectorsFree sampleCHAdeMO vehicle contactor open early
CHAdeMO vehicle contactor open early (CHA-H03) — CHAdeMO field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
NET-C01Cross-brand / Protocol · DC Fast ChargersFree sampleDNS resolution failure to CSMS
DNS resolution failure to CSMS — charger cannot resolve the CSMS hostname; Soft-offline with local Ready possible. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on NET-C01.
NET-C02Cross-brand / Protocol · DC Fast ChargersFree sampleTLS handshake fail to CSMS
TLS handshake fail to CSMS — DNS works but TLS fails (cert/clock/SNI), leaving OCPP down. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on NET-C02.
NET-C03Cross-brand / Protocol · DC Fast ChargersFree sampleNAT keepalive drops OCPP websocket
NAT keepalive drops OCPP websocket — sessions work briefly after reboot then Soft-offline until the next reconnect. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on NET-C03.
NET-C04Cross-brand / Protocol · DC Fast ChargersFree sampleProxy MITM breaks certificate pin
Proxy MITM breaks certificate pin — corporate proxy intercepts HTTPS and the charger rejects the substituted certificate. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on NET-C04.
MET-01Cross-brand / Protocol · DC Fast ChargersFree sampleEnergy meter CRC error
Energy meter CRC error (MET-01) — Metering field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
MET-02Cross-brand / Protocol · DC Fast ChargersFree sampleCT polarity reversed after service
CT polarity reversed after service (MET-02) — Metering field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
GND-01Cross-brand / Protocol · DC Fast ChargersFree sampleGround continuity fail at dispenser
Ground continuity fail at dispenser (GND-01) — Ground / isolation field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
GND-02Cross-brand / Protocol · DC Fast ChargersFree sampleIsolation monitor nuisance trip wet weather
Isolation monitor nuisance trip wet weather (GND-02) — Ground / isolation field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
SEQ-01Cross-brand / Protocol · Cables & connectorsFree sampleEVSE ready before vehicle CP ready race
EVSE ready before vehicle CP ready race (SEQ-01) — Sequence / interlock field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
SEQ-02Cross-brand / Protocol · DC Fast Chargers solo+Emergency stop latch not cleared in CSMS
Emergency stop latch not cleared in CSMS (SEQ-02) — Sequence / interlock field fault. Stay OEM-agnostic until the protoc…
LOAD-01Cross-brand / Protocol · Power cabinet / LMSFree sampleDynamic load management caps to 0 A
Dynamic load management caps to 0 A (LOAD-01) — Load management field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
LOAD-02Cross-brand / Protocol · Power cabinet / LMSFree sampleLMS heartbeat lost — failsafe curtail
LMS heartbeat lost — failsafe curtail — chargers derate or go Unavailable when site LMS/PLC heartbeat drops, protecting the feeder. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on LOAD-02.
TEMP-01Cross-brand / Protocol · DC Fast ChargersFree sampleAmbient derate never recovers overnight
Ambient derate never recovers overnight (TEMP-01) — Thermal / ambient field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.