- EV charging
- EV charger
6 RED BLINKS
Tesla 6 RED BLINKS: overvoltage or poor grid quality was detected and charging is disabled
Risk level
Critical
Stop using the equipment and contact a professional.
Urgency
Immediate
Quick answer
6 RED BLINKS means overvoltage or poor grid quality was detected and charging is disabled in the cited charger family. The deciding observation is whether the event coincides with a supply disturbance and repeats while the nominal installation should be 200–240 V. Do not infer a failed part from the code alone.
Safety first
What to do now
- Capture the exact charger, vehicle and pattern
Photograph 6 RED BLINKS and record the Tesla model, part/serial number, vehicle model, cable used, charge stage and approximate time. Do not clear the event before those facts are saved.
- Run the one deciding check
Leave charging disabled and record the time and any simultaneous supply symptoms. Do not measure the terminal block or keep resetting the breaker. Record whether the event coincides with a supply disturbance and repeats while the nominal installation should be 200–240 V. Change one condition only.
- Use recurrence as the stop point
A one-off event aligned with a wider supply disturbance supports the grid-quality branch, but it still needs recurrence evidence before conclusions. Repeated six-blink shutdowns require terminal voltage measurements; they do not prove the Wall Connector itself is defective.
What you must never do
- Do not attempt this professional task: Measured handoff for 6 RED BLINKS
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Measured handoff for 6 RED BLINKS
What they doMeasure line-line and each line-ground at the terminal block under the approved procedure, compare with nominal 200–240 V and separate site wiring from upstream grid quality.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- EV charging
- Brand
- Tesla
- Product type
- EV charger
Known code variants
- 6 clignotements rouges Wall Connector
- 6 lampeggi rossi Wall Connector
- 6 parpadeos rojos Wall Connector
- 6 red blinks Wall Connector
- 6 rote Blinkzeichen Wall Connector
- Tesla 6 clignotements rouges
- Tesla 6 lampeggi rossi
- Tesla 6 parpadeos rojos
- Tesla 6 red blinks
- Tesla 6 rote Blinkzeichen
- Tesla Wall Connector 6 RED BLINKS
What it means
Tesla’s official documentation defines 6 RED BLINKS as overvoltage or poor grid quality was detected and charging is disabled. That is the protection or controller state, not a universal component diagnosis. A one-off event aligned with a wider supply disturbance supports the grid-quality branch, but it still needs recurrence evidence before conclusions. Repeated six-blink shutdowns require terminal voltage measurements; they do not prove the Wall Connector itself is defective.
Warnings and stop conditions
- Criticalsource verified
Smoke, burning smell, sparks, water, visible damage, abnormal heat or repeated protective-device trips means stay clear and leave charging disabled. Never open the charger, panel or connector and never probe voltage yourself.
Evidence: Troubleshooting a Wall Connector — fault codes
Sources and technical references
- 1
Troubleshooting a Wall Connector — fault codes
Tesla · official_doc
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