Charger displays E02 and refuses to start; vehicle does not begin charging and may show ‘Check power source’.

Safety first: Turn off the breaker feeding the Megear charger before inspecting the outlet or wiring. Use a properly rated multimeter only if you are trained to do so.

• 1. Verify outlet type and rating:
  • Confirm that the Megear model is connected to the correct NEMA outlet type (e.g., NEMA 14-50 for 240 V models, NEMA 5-15 for 120 V models).
  • Check the outlet label and your charger manual to ensure compatibility.
• 2. Inspect the plug and outlet:
  • With power off, remove the Megear plug from the outlet.
  • Look for discoloration, melting, or burn marks on the plug blades and outlet face.
  • If any damage is present, stop using the outlet and have it replaced by a licensed electrician.
• 3. Check supply voltage (qualified persons only):
  • Turn the breaker back on.
  • Use a multimeter to measure voltage at the outlet: it should match the charger’s rated input (e.g., ~240 V or ~120 V).
  • If voltage is significantly low or high, or one leg is missing on a 240 V circuit, have an electrician correct the supply.
• 4. Inspect internal power supply connections:
  • Disconnect power again and open the Megear housing.
  • Verify that the input wires to the internal power supply module and relay board are tight and not discolored.
  • If the power supply board shows bulging capacitors, burn marks, or a burnt smell, it should be replaced.

If E02 continues after confirming proper supply voltage and connections, the internal power supply module or main control board is likely defective and should be replaced by a professional.