Display shows E7; charger may start then immediately stop charging.

Safety first: Turn OFF the breaker immediately if you suspect a short or smell burning. Do not continue to reset and retry.

• Inspect output cable: Look along the entire length of the Schumacher charge cable for crushed sections, cuts, or melted insulation. If any damage is found, replace the cable/handle assembly.
• Try a different vehicle (if possible): If E7 only occurs with one specific EV, the vehicle’s onboard charger may be malfunctioning and drawing excessive current. Have the vehicle inspected by its manufacturer.
• Check current setting: If your model allows adjustable current, ensure it is set within the circuit rating and vehicle capability.
• If E7 occurs with good cable and multiple vehicles: The internal power module or current sensor may be defective. This requires professional diagnosis and likely replacement of the power module or control board.