Protocol guides

Stage TLS, contract, and renegotiation failures; fall back to EIM when needed.

Matrix vehicle, stall, and credential before blaming depot hardware.

Know which inhibits EVSE techs can check and what stays with BESS and fire vendors.

Split energy path from money path when Authorize, PED, or kWh numbers disagree.

Bleed airlocks, find leaks, and prove flow before you condemn cooled cables.

Isolate CHAdeMO lock and CAN faults on dual-standard cabinets, and know when to retire.

Triage native NACS ports, adapters, and thermal derates without guessing the path.

Separate undervoltage, phase loss, and breaker trips from fake EVSE failures.

Find where SLAC, CableCheck, PreCharge, or CurrentDemand dies, then branch.

Walk StatusNotification Faulted to the right subsystem before you open the cabinet.