External Charging Equipment Not Providing AC Power

Common Symptoms

• Alert on the touchscreen: "External charging equipment not providing power — Check power source or try different equipment"
• AC charging (home / Wall Connector / Mobile Connector) won't start
• DC fast charging / Supercharging still works normally
• Driving is unaffected

Probable Causes (Ranked by Likelihood)

• The vehicle requested AC power but the onboard charger detects no supply voltage from the external equipment — often a hardware issue in the charging equipment that prevents it switching power to the vehicle Likely
• A condition affecting the equipment's power source (dead outlet, tripped breaker, wiring problem) Possible
• A condition in the vehicle's onboard charging path (less common — per Tesla this alert usually points to the external equipment) Unlikely

Step-by-Step Diagnostic Procedure

1. Key discriminator per Tesla's official text: DC fast charging / Supercharging should still work with this alert. If Supercharging works but AC charging doesn't, the problem is on the AC side — usually the equipment or its power supply.

2. Try multiple, different types of charging equipment (different Wall Connector, Mobile Connector, public AC station). If a different unit charges the car, the original equipment or its wiring is at fault.

3. Check the equipment's status lights and its breaker; have an electrician inspect the outlet/building wiring if the equipment shows no power.

4. If the vehicle refuses AC charging on multiple known-good units, then the onboard charging path needs Tesla service.

Frequently Asked Questions