EV Diagnostics
Verified EV diagnostic knowledge page

Tesla CC_f024

Unable to charge - Low Wall Connector current Primary unit current setting must be increased

Common search variants: CCf024 · CC-f024 · CC f024 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeNo. The verified alert meaning states that charging is unavailable until the Wall Connector primary-unit current setting is increased to a valid operating setting.
ServiceContact a qualified electrician. Tesla’s documented instruction for this alert is to have an electrician adjust the Wall Connector’s internal rotary switch.
Confidence95%

Quick answer

Tesla alert CC_f024 means charging is unavailable because the Wall Connector primary unit’s current setting is too low. Verified evidence identifies an incorrect Wall Connector internal rotary-switch setting as the cause.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does CC_f024 mean?

Tesla alert CC_f024 means charging is unavailable because the Wall Connector primary unit’s current setting is too low. Verified evidence identifies an incorrect Wall Connector internal rotary-switch setting as the cause.

2. Technical explanation

This is an OEM alert, not a standardized OBD diagnostic trouble code. Tesla’s owner-documentation communications state that CC_f024 means: “Unable to charge - Low Wall Connector current. Primary unit current setting must be increased.” The documented condition is an incorrect rotary-switch setting in the Wall Connector. Tesla directs that the Wall Connector’s internal rotary switch be adjusted to a valid operating-current setting by an electrician, with power removed before that work.

3. What system is affected?

Tesla Wall Connector charging equipment, specifically the primary unit current setting/internal rotary switch.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • The vehicle displays CC_f024.
  • Charging is unavailable.
  • The alert reports low Wall Connector current and states that the primary unit current setting must be increased.

6. Possible causes

  • Incorrect Wall Connector internal rotary-switch setting.
  • The primary Wall Connector unit is set below a valid operating-current setting.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

No. The verified alert meaning states that charging is unavailable until the Wall Connector primary-unit current setting is increased to a valid operating setting.

9. What you can safely do

  • Arrange for an electrician to assess the Wall Connector installation and current setting.
  • Use the Wall Connector installation guide as referenced by Tesla.
  • Do not attempt to access or adjust the Wall Connector’s internal rotary switch yourself.

10. Step-by-step troubleshooting

  1. Confirm that the displayed alert is CC_f024.
  2. Have an electrician verify the Wall Connector internal rotary-switch setting and adjust it to a valid operating-current setting.
  3. The electrician should ensure there is no power to the Wall Connector before performing the documented adjustment.

11. When to contact service

Contact a qualified electrician. Tesla’s documented instruction for this alert is to have an electrician adjust the Wall Connector’s internal rotary switch.

12. What the service center may check

  • Verify the Wall Connector primary unit’s internal rotary-switch setting.
  • Verify that the setting is a valid operating-current setting.
  • De-energize the Wall Connector before the electrician performs internal adjustment, as specified in Tesla documentation.

13. Possible repair or resolution

  • A qualified electrician adjusts the Wall Connector internal rotary switch to a valid operating-current setting.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA manufacturer communication 10250483, published December 1, 2023: Tesla owner documentation identifies CC_f024 as an incorrect rotary-switch setting and directs an electrician to adjust the Wall Connector’s internal rotary switch to a valid operating-current setting. https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf
  • NHTSA manufacturer communication 10253660, published March 26, 2024: Tesla documentation includes CC_f024 and identifies an incorrect rotary-switch setting. https://static.nhtsa.gov/odi/tsbs/2024/MC-10253660-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official NHTSA-hosted Tesla manufacturer communications: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf and https://static.nhtsa.gov/odi/tsbs/2024/MC-10253660-9999.pdf

19. Frequently asked questions

What does Tesla CC_f024 mean?

It means charging is unavailable because Wall Connector current is low and the primary unit current setting must be increased.

What causes CC_f024?

Tesla documentation identifies an incorrect Wall Connector internal rotary-switch setting.

Can I adjust the Wall Connector setting myself?

Tesla documentation directs owners to have an electrician perform the adjustment and specifies that power must be removed before the internal work.

Which vehicles are covered by the verified applicability data?

US Tesla Model 3 (2017–2023), Model S (2012–2023), and Model X (2016–2023).

20. Sources & verification

Verified
Show all 24 verified sources
Tesla CC_f024: Unable to charge - Low Wall Connector current Primary… | EV Diagnostics