Charger displays E08 and stops charging; may occur when the vehicle requests more current than the charger can provide.

Safety first: Turn off power before opening the charger. Overcurrent conditions can overheat wiring and components.

• 1. Confirm charger rating:
  • Check the label on the Megear unit for its maximum output current (e.g., 16 A, 32 A).
  • Ensure the vehicle’s onboard charger settings (if adjustable) do not exceed this rating.
• 2. Inspect cable for overheating:
  • After an E08 event, carefully feel the cable (once cooled) for any soft spots, bubbles, or discoloration.
  • If the cable jacket is deformed or smells burnt, replace the cable assembly.
• 3. Check for partial shorts (advanced):
  • With power disconnected, use a multimeter to measure resistance between line conductors and ground at the J1772 end.
  • Any low resistance reading (other than infinite/open) indicates insulation failure and requires cable replacement.
• 4. Internal current sensor inspection:
  • Open the housing and locate the current transformer (CT) or shunt resistor used for current measurement.
  • Ensure its wiring to the main control board is secure.
  • If the CT is cracked or the shunt is discolored, replace the main control board or sensor assembly.

If E08 recurs with different vehicles and after cable inspection, the internal current sensing or control circuitry is likely faulty and should be serviced by a professional.