Fault database
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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.
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.
CP-E250-ISOChargePoint · Express 250 · DC Fast ChargersFree sampleIsolation fault after cable swap
Express 250 isolation fault before or during CableCheck after a cable swap, rain, or cooled-cable service — one gun or whole power cabinet. chargepoint field note: keep evidence scrubbed and prove the ranked cause before module RMA on CP-E250-ISO.
ABB-T54-ISOABB · Terra 54 · DC Fast ChargersFree sampleIsolation error before charge
Terra 54 isolation error before charge — rain/cable/ISO path before power module blame. Field techs should correlate HMI/Cloud timestamps with Verify which gun and which stack faulted on dual-standard Terra sites.
TRI-PK-ISOTritium · PK350 · DC Fast ChargersFree samplePK350 isolation fault
PK350 isolation fault — cooled-cable/moisture path; PK liquid-cooled rules differ from RTM air-cooled. Field techs should correlate HMI/Cloud timestamps with PK liquid-cooled path vs RTM air-cooled path changes isolation and thermal triage.
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
ALP-HYC-ISOAlpitronic · HYC300 · DC Fast ChargersFree sampleHYC isolation fault
Alpitronic Hypercharger fails isolation during CableCheck on one connector, or occasionally across the whole cabinet, most often after rain, a cable swap, or overnight condensation. Because HYC300 modules share a common coolant loop, a wet or contaminated path on one gun can occasionally present as a broader isolation issue across the bank.
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.
SIE-SD-ISOSiemens · Sicharge D · DC Fast ChargersFree sampleSicharge isolation
Siemens Sicharge D reports an isolation fault on one connector path while the peer gun on the same cabinet may remain Available, and technicians must confirm whether the power cabinet or the dispenser head owns the failing measurement before opening either enclosure. Weather exposure and recent cable service are the most common triggers.
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.