Fix Library
Practical, step-by-step fixes for ev fleet & charging infrastructure problems — 68 published so far.
Your Level 2 charger trips the breaker nightly because the circuit is overloaded by simultaneous charging sessions or a faulty breaker; check…
See the fixYour Level 2 charger trips the breaker because the circuit is overloaded, the breaker is undersized or worn, or the charger has…
See the fixYour commercial Level 2 charger trips the breaker on plug-in because the vehicle's onboard charger draws a sudden inrush current that exceeds…
See the fixYour DC fast charger throttles to 50 kW because the vehicle's battery management system limits charge rate due to high battery temperature,…
See the fixYour DC fast charger isn't broken — the vehicle's battery management system deliberately reduces charge acceptance above 80% SOC to protect battery…
See the fixA 'communication fault' on a DC fast charger usually means the charger can't handshake with the vehicle or the backend network, often…
See the fixA 'Communication Error' that aborts sessions after ~2 minutes usually means the charger and vehicle lose the PLC (Power Line Communication) handshake…
See the fixA 'Communication Error' on a DC fast charger with Ford E-Transit vans usually means the charger's CCS handshake fails due to outdated…
See the fixA DC fast charger showing a communication error usually means the vehicle and charger can't agree on a charging protocol, often due…
See the fixError code 0x103 on a DC fast charger typically means a communication timeout between the charger and the vehicle's battery management system,…
See the fixError code 0x3F on a DC fast charger typically means a communication handshake failure between the charger and the vehicle's battery management…
See the fixError code 0x8001 on a DC fast charger usually means a communication failure between the charger and the vehicle's battery management system,…
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