Charger display shows E2 and refuses to start charging when connected to vehicle.

Safety first: Turn OFF the circuit breaker feeding the Schumacher EV charger. Do not use the charger if a ground fault is suspected.

• Inspect for moisture: Check the J1772 handle and vehicle inlet for water, condensation, or snow. Gently dry with a clean cloth and allow to air dry for at least 30 minutes before retrying.
• Check cable and handle: Look for cuts, abrasions, or crushed sections on the output cable. If copper conductors are visible or the jacket is deeply damaged, the cable assembly must be replaced.
• Verify supply ground: Have a qualified electrician confirm that the EV charger circuit has a solid equipment ground and correct polarity at the breaker panel and junction box.
• Test reset: If your Schumacher model has a physical RESET or TEST button on the front, press TEST then RESET with power on. If E2 reappears immediately, the internal GFCI/CCID module or control board is likely faulty.
• Do not bypass safety: Never attempt to bypass the ground fault protection. If E2 persists after drying and inspection, contact a licensed technician or Schumacher support for GFCI/CCID module or control board replacement.