EV charger will not start charging; display shows E1 shortly after plugging into vehicle.

Safety first: Turn OFF the charger at the breaker and disconnect the vehicle before inspecting anything. Do not open the charger enclosure unless power is locked out at the service panel.

• Power cycle the charger: Turn the dedicated breaker OFF for 2 minutes, then back ON. Reconnect the vehicle and see if E1 clears.
• Inspect the J1772 connector: Check the pilot pin (smallest pin) and other contacts for corrosion, bent pins, or debris. Clean gently with a dry, soft brush. Do not use liquids. If the plastic is cracked or pins are loose, the output cable/handle assembly should be replaced.
• Check cable strain: Make sure the output cable from the Schumacher wall unit to the handle is not sharply kinked, crushed, or cut. Visible damage indicates the cable assembly must be replaced.
• Try another vehicle (if available): If the charger works on another EV, the issue may be with the vehicle inlet rather than the Schumacher charger.
• If E1 persists: The pilot driver circuit on the main control board may be faulty. Do not attempt board-level repair; contact a qualified EVSE technician or Schumacher support for control board diagnosis and replacement.