Wallbox

Wallbox — field brand hub

Wallbox tickets in this corpus center on Pulsar Plus AC wallboxes (workplace / residential / light commercial). There is no DC cabinet↔dispenser split — ownership is enclosure, CP/pilot path, GFCI/PEN protection, and Wi-Fi/app schedule.

When this OEM shows up

Expect GFCI trips after rain or wash-down, CP state faults with no EV, UK-style PEN faults on relevant installs, and Wi-Fi drops that kill scheduled charging. Confirm whether the complaint is “won’t start,” “trips mid-session,” or “schedule didn’t run” before opening the enclosure. Wall unit owns GFCI, PP/CP, and local UI. Site owns feeder breaker, PE bond, and often the Wi-Fi/AP path. Do not open the EVSE for a tripped upstream breaker that only looks like a charger fault.

How faults present

• Local LEDs / app: fault icons, GFCI trip, CP error.
• OCPP (networked installs): Faulted / Unavailable; schedule failures may stay Available with no session — check app/backend, not just StatusNotification. Use /guides/ocpp-faulted-triage when Faulted.
• Cloud / myWallbox-class app: schedule and Wi-Fi history often explain “didn’t charge overnight.”
• Physical: moisture at cable gland, wet holster after wash-down, weak Wi-Fi after AP changes.

Ranked failure patterns

1. Pulsar GFCI trip — Moisture, contamination, or true ground path. Dry and inspect before board swaps. Entry: /entries/wallbox-wb-pp-gfci-pulsar-gfci-trip. PE: /entries/protocol-gnd-01-ground-continuity-fail-at-dispenser.

2. CP state fault, no EV — Pilot wiring, diode path, or stuck state with nothing plugged. Prove with second vehicle/cable when possible. Entry: /entries/wallbox-wb-pp-cp-cp-state-fault-no-ev.

3. PEN fault (UK-style) — Protective earth/neutral monitoring on applicable installs — electrician territory if wiring. Entry: /entries/wallbox-wb-pp-pen-pen-fault-uk-style.

4. Wi-Fi drop loses schedule — AP coverage / credentials; energy path may be fine. Entry: /entries/wallbox-wb-pp-wifi-wi-fi-drop-loses-schedule. Soft-offline Heartbeat gaps: /entries/protocol-ocpp-f02-heartbeat-timeout-to-csms.

Logs / tools

App/cloud event history, LED state photos, DMM on CP/PE, outlet/breaker verification, known-good cable/vehicle. For networked OCPP sites: Heartbeat and StatusNotification export.

Escalate when

• Electrician: PEN/PE, breaker, supply voltage, wet conduit, shared-circuit trips under load.
• Network/site IT: Wi-Fi/SSID changes, VLAN, captive portal.
• OEM: Confirmed CP board / GFCI hardware after wiring and moisture cleared.

Do not OEM-escalate schedule misses that are Wi-Fi only.

Field checklist

1. Breaker tripped or EVSE GFCI? Check upstream first.
2. Schedule miss vs hard fault — pull app Wi-Fi history.
3. Photo LEDs; note weather / wash-down.
4. Known-good cable/vehicle if CP or GFCI.
5. PEN/PE issues: stop and call electrician on applicable installs.
6. Networked sites: OCPP Heartbeat vs local charge capability.

Keep GFCI, CP, PEN, and Wi-Fi as separate ticket paths — do not combine them into one board RMA.