EO charger trips the upstream MCB or main breaker during charging.

Safety first: Do not repeatedly reset a breaker that trips instantly; this may indicate a short circuit.

• Check current settings: In the EO app or installer interface, confirm that the maximum charging current does not exceed the breaker and cable rating.
• Inspect for visible damage: With power off, open the charger and look for burnt components, melted insulation, or signs of arcing.
• Check cable condition: Inspect the supply cable from the consumer unit to the charger for damage or overheating.
• Test with reduced current: If the breaker trips only at higher currents, temporarily reduce the current limit and monitor operation while arranging for a full inspection.
• Professional fault‑finding: A qualified electrician should perform continuity and insulation tests to locate any short circuits and replace the faulty component or wiring.