- EV charging
- EV charger
3 RED BLINKS
Tesla 3 RED BLINKS: high temperature was detected and charging is limited or disabled
Risk level
Critical
Stop using the equipment and contact a professional.
Urgency
Immediate
Quick answer
3 RED BLINKS means high temperature was detected and charging is limited or disabled in the cited charger family. The deciding observation is whether the faceplate or cable handle is excessively warm and whether the pattern occurs only under sustained load. Do not infer a failed part from the code alone.
Safety first
What to do now
- Capture the exact charger, vehicle and pattern
Photograph 3 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
Stop charging, keep clear if anything is hot, scorched or smells burnt, and let the unit cool. Connect Wi-Fi only when safe so firmware can update. Record whether the faceplate or cable handle is excessively warm and whether the pattern occurs only under sustained load. Change one condition only.
- Use recurrence as the stop point
If the unit cools and the pattern stays absent, temperature protection responded; record ambient conditions and charge current rather than calling it fixed. If three red blinks recur, conductor sizing, terminal torque and internal temperature sensing must be checked before more charging.
What you must never do
- Do not attempt this professional task: Measured handoff for 3 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 3 RED BLINKS
What they doInspect for heat damage, verify conductor size and terminal torque to specification, and compare logged temperature with measured temperature under controlled load.
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
- 3 clignotements rouges Wall Connector
- 3 lampeggi rossi Wall Connector
- 3 parpadeos rojos Wall Connector
- 3 red blinks Wall Connector
- 3 rote Blinkzeichen Wall Connector
- Tesla 3 clignotements rouges
- Tesla 3 lampeggi rossi
- Tesla 3 parpadeos rojos
- Tesla 3 red blinks
- Tesla 3 rote Blinkzeichen
- Tesla Wall Connector 3 RED BLINKS
What it means
Tesla’s official documentation defines 3 RED BLINKS as high temperature was detected and charging is limited or disabled. That is the protection or controller state, not a universal component diagnosis. If the unit cools and the pattern stays absent, temperature protection responded; record ambient conditions and charge current rather than calling it fixed. If three red blinks recur, conductor sizing, terminal torque and internal temperature sensing must be checked before more charging.
Warnings and stop conditions
- Criticalsource verified
Do not touch a hot connector or enclosure. Smoke, burning smell, scorching, deformation or repeated heat shutdown means isolate the area and call an EV-charge-point electrician or emergency service as appropriate.
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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