Sun load derate on unshaded cabinet

Cross-brand / Protocol · DC Fast Chargers

Verified 2026-08-013 field confirmsSeverity: medium ~60 min

Safety

Live connectors and HV may be present during handshake faults — follow pad LOTO when opening equipment.

Full procedure requires solo+

Symptom teaser: Sun load derate on unshaded cabinet (TEMP-03) — Thermal / ambient field fault. Stay OEM-agnostic until the protocol stage pins a hardware path; capture SECC/OCP…

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