Charger displays E02 and refuses to start; vehicle may show 'charging error' or 'check power source'.

Safety first: Do not continue using the charger if a ground fault is suspected. Risk of electric shock. Turn off power at the breaker before inspection.

• Reset the charger: Turn OFF the breaker for 5 minutes to allow the internal GFCI circuit to reset. Turn ON and test again.
• Check for moisture: Inspect the Zencar connector and cable entry points for signs of water ingress, condensation, or corrosion. If wet, disconnect from power and allow to dry in a warm, dry area for at least 24 hours.
• Inspect cable jacket: Look for cuts, abrasions, or crushed sections along the entire length of the output cable. If any copper conductors are visible or the cable feels soft/flat in one area, replace the output charging cable assembly.
• Verify ground connection: At the supply panel, ensure the ground conductor feeding the Zencar EV charger is securely landed and not shared improperly with other circuits (per local code). Loose grounds can cause nuisance E02 trips.
• If E02 recurs with different vehicles and outlets: The internal GFCI/ground fault sensor module or main control PCB may be faulty and should be replaced by a qualified technician.