Fault database
Search by code, symptom, brand, category, or connector. Full procedures gated by subscription — look for green Free sample badges for open procedures.
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6 results
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.
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.
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-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.
OCPP-F11Cross-brand / Protocol · DC Fast ChargersFree sampleStopTransaction id mismatch
StopTransaction id mismatch — stop fails or CSMS alarms because transactionId/idTag does not match the open transaction. protocol field note: keep evidence scrubbed and prove the ranked cause before module RMA on OCPP-F11.
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…