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Top light on, Off, Off, 2 flashes

Top light on, Off, Off, 2 flashes — No ground connection detected

Tesla Wall Connector · (Gen 3)

What does Top light on, Off, Off, 2 flashes mean?

The Wall Connector is not detecting a proper ground connection. This is a safety issue.

Common Causes

  • Improper grounding of the Wall Connector
  • Faulty ground connection at the circuit breaker or power distribution box

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the Wall Connector is properly grounded.

  2. 2

    Consult an electrician to verify proper grounding at your circuit breaker or power distribution box.

  3. 3

    Verify the connection to the Wall Connector is secure.

Browse all codes in this manual (49)
Verified technical data. Last updated: April 2026

Related Faults

1 red blinkOne red blink — Ground fault detected, charging disabled2 red blinksTwo red blinks — Ground assurance fault, high ground resistance detected3 red blinksThree red blinks — High temperature detected, charging limited or disabled
Source: Tesla Wall Connector (Gen 3)
Open Manual (Page 24)Search more codes in this manual