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6 red blinks

Six red blinks — Overvoltage or poor grid quality detected, charging disabled

Tesla Wall Connector · (Gen 3)

What does 6 red blinks mean?

The Wall Connector has detected voltage levels outside the normal operating range or poor quality power from the grid. Charging is disabled for safety.

Common Causes

  • Input voltage is not within the expected 200-240 volt range.
  • Issues with the local electrical grid quality.
  • Faulty power supply.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify that the power supply voltage is nominal (200-240 volts).

  2. 2

    Have an electrician measure the voltage at the Wall Connector's terminal block (L1 to L2/N, L1 to Ground, L2/N to Ground).

  3. 3

    Record these voltage readings for diagnostic purposes.

  4. 4

    Contact your utility provider if grid quality issues are suspected.

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 55)Search more codes in this manual