Charger shows E06 and refuses to charge; often associated with very low or unstable supply voltage.

Safety first: Turn OFF power before inspecting wiring. Low voltage can cause overheating and equipment damage.

• 1. Measure supply voltage under load: Have an electrician measure voltage at the charger while another heavy load (e.g., oven, AC) is running. If voltage drops below the charger’s minimum (typically ~180–190 VAC), the branch circuit may be undersized or overloaded.
• 2. Inspect breaker and connections: With power OFF, check that the breaker lugs and charger input terminals are tight and free of corrosion or heat damage. Retorque as needed.
• 3. Check wire gauge and run length: Confirm that the wire size and distance from panel meet Besenergy installation specs for the charger’s current rating. Long runs with small gauge wire can cause excessive voltage drop; upgrading wiring may be necessary.
• 4. Test at a different time: If E06 occurs only during peak usage times, local grid voltage may be sagging. Consult your utility or consider scheduling charging for off-peak hours.
• 5. Internal fault: If measured voltage is stable and within spec but E06 persists, the input voltage sensing circuit on the main control board may be defective and require replacement.

When to call a professional: Any voltage measurements and wiring upgrades should be performed by a licensed electrician.