Kia EV charger displays E06 and charging is interrupted or will not start.

Safety first: Undervoltage can cause overheating and unreliable operation. Do not repeatedly reset the charger without addressing the supply issue.

• 1. Check other loads: If E06 appears when large appliances (HVAC, ovens) run, your supply may be overloaded. Try charging when fewer loads are active.
• 2. Measure voltage under load: Have an electrician measure voltage at the charger while it attempts to start charging. If voltage drops significantly below the rated value, the supply wiring or upstream circuit is inadequate.
• 3. Inspect terminations: With power off, an electrician should tighten all line and neutral terminals in the charger and at the breaker. Loose connections increase voltage drop and heat.
• 4. Upgrade wiring if needed: If the run from the panel to the charger is long or uses undersized cable, upgrading to a larger gauge as per Kia’s installation manual can resolve undervoltage.
• 5. Board-level check: If measured voltage is stable and within spec but E06 persists, the input sensing circuit on the main control board may be defective and require board replacement.