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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14 results
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.
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.
TEMP-02Cross-brand / Protocol · DC Fast ChargersFree sampleInlet air filter clog false overtemp
Inlet air filter clog false overtemp (TEMP-02) — Thermal / ambient field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCPP/vehicle evidence before opening the cabinet.
TEMP-03Cross-brand / Protocol · DC Fast Chargers solo+Sun load derate on unshaded cabinet
Sun load derate on unshaded cabinet (TEMP-03) — Thermal / ambient field fault. Stay OEM-agnostic until the protocol stag…
CP-E250-FANChargePoint · Express 250 · DC Fast Chargers solo+Power module fan fail
Express 250 power-module fan fail or thermal derate — loud/stopped fan, elevated module temps, or Cloud thermal events w…
CP-XP-NACSChargePoint · Express Plus · DC Fast ChargersFree sampleNACS port overtemp
Express Plus NACS port overtemp / derate — handle or inlet temps climb, session throttles or Faults, often in sun or after damaged handle work. chargepoint field note: keep evidence scrubbed and prove the ranked cause before module RMA on CP-XP-NACS.
ABB-T54-SENSABB · Terra 54 · DC Fast Chargers solo+Temp sensor open circuit
Terra 54 temp sensor open circuit — thermal derate/fault from open sensor harness. Field techs should correlate HMI/Clou…
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-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…
CAB-FANSite stack (generic) · LMS / power cabinet · Power cabinet / LMS solo+Power cabinet fan fail
Power cabinet fan fail — thermal alarms with stopped or noisy cabinet fans on the site power cabinet, often after dusty …
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…
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.
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…
SWG-XFMREaton · Switchgear solo+Transformer overtemp
The site transformer serving the depot runs into overtemperature right at charging peak — cooling fans are audibly runni…