Tried two different socket/adapter combinations, so the adapter was reinstalled in both cases (on the connector and on the socket). No lights. An arc can occur if you attempt to unplug it while charging with a third-party charger, and an electric arc could cause serious personal injury and/or property damage. What is Tesla Error Code CP_a139?
The first tesla error code CP_a139 – ‘Check device for error codes or messages’. Then it’s still ‘no power’ (can’t remember the code) – so the car detects the charger is connected but no power. Of the two sockets, the connector has no light and doesn’t open the charging port – like it has no power. The “Failed to Load – Service Required” error is usually easy to fix with a few simple steps. If you take a look at your manual, you should be able to find the mistake and fix it yourself as soon as possible.
Can’t charge because your vehicle has detected an electric arc hazard in the third-party charger used to connect the “CCS” hybrid charging system; charging handle into your car’s charging port.
Make sure that charging has stopped completely. Use your vehicle’s touchscreen to confirm charging has stopped or stop charging if needed.
Use the charging station’s display and controls to confirm that charging has stopped or to end any active charging sessions.
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What Causes Tesla Error Code CP_a139 and How to Fix It
Tesla error code CP_a139 “Failed to charge – Service required” error message usually appears when there is a problem with the charger or the onboard charging port.
It can also be caused by something wrong with the electricity, such as a blown fuse. In the worst case scenario, the error could mean that there is a bigger problem, such as a problem with the battery.
The Tesla CP_a139 “Failed to Charge – Service Required” error code is usually easy to fix by following a few simple steps.
Most of the time, you won’t even need to call Tesla service. If you take a look at your manual, you should be able to find the mistake and fix it yourself as soon as possible.
| Error Code | Loss |
|---|---|
| BMS_a069 | Battery charge level lowCharge now |
| CC_a001 | Unable to charge – Insufficient groundingProper wiring or outlet grounding must be verified |
| CP_a139 | Charging problem |
Faulty on-Board Charger
A faulty charger or supercharger with error code message Tesla CP_a139 is the main cause of the Failed to Charging Required error message.
The charger on your Tesla Car converts the alternating current from the charging station into direct current that can be stored in the vehicle’s battery.
Lose Connection
Like any other electrical device, your Tesla needs a strong connection to charge properly. The Failed to charge Service required error message code could be caused by a poor connection between the charging and your Tesla car.
In rare cases, the Cannot charge Service required error message can be caused by a faulty battery. Although it’s rare, it’s something you should know.
For starters, a damaged battery loses its ability to store energy, resulting in a loss of more than 20% of range.
A Blocked Charging Port
Sometimes dirt or snow can clog the charging port, preventing the Car from charging properly. If this happens, the Failed to Load Service Request error message may appear.
When debris blocks the charging port, it can lead to a connection failure between the car and the charger. This can result in slow charging times or the vehicle not charging at all.
HOW TO RESOLVE TESLA CANNOT CHARGE, SERVICE REQUIRED ERROR
Tesla error code CP_a139 Before you contact the tow truck or give up hope of the Tesla being unable to charge, needing service warning, there are a few things you can do to recharge your car.
Some are simple repairs, while others will require a visit to a Tesla Service Center.
What Causes Tesla Error Code CP_a139
| Model | Tesla model |
| Error Code | CP_a139 |
| Issue | The connector has no light and doesn’t open the charging port – like it has no power. |
Everything You Need to Know About Tesla Error Code CP_a139
After receiving the “Tesla cannot charge, service required” problem message, you should check for available software upgrades. Periodically, Tesla distributes updates that can be downloaded and installed over the air.
When Tesla releases a new software update, a pop-up message will appear in the center of your touchscreen with your choice of settings.
Make sure the charger is plugged in properly and there are no loose connections. Check the connection between your car and the charger.
A secure connection between the charger and the charging port is important for successful charging.
To clean it, remove any debris, dust, or leaves that could clog the port connection by removing its cover. You can use a can of compressed air to remove any debris clogging the charging port.
Performing a Hard Reset
Trying a factory reset is the next step if your car won’t charge after trying previous solutions. Factory reset will eliminate any temporary issues that might have caused charging problems.
Make sure the vehicle is parked and the charger is unplugged.
Press the “Power Off” button after navigating the touchscreen to Controls > Safety & Security. All vehicle systems will restart.
Avoid getting into the car for two minutes while you wait. Do not press the brake pedal, open the door, or turn on any lights. This may conflict with the reset procedure.
I See the Error CP_a139
If you encounter this error while using specific software, you can check the program’s documentation or online support resources for information about this error message and how to resolve it.
Also, if you encounter this error while using the website or online service, you can contact their customer support for help.
If you can provide more information about when and where you see this error message, I can offer more specific advice on what to do next.
- Failed to load (unplug and try again) – doesn’t help
- Charging disabled (close charging port and try again) – didn’t help.
- Never use the lever of the charging port to plug in the cable (using the cable plug will interfere with the charging process) – I don’t understand.
| Code CP_a139 | Battery charging problem |
| Problem solving | Resent, On-Off |
What to Do When You Encounter Tesla Error Code CP_a139
Remove the Mobile Connector from the vehicle and press the RESET button. Plug the mobile connector into the vehicle. If the error persists, unplug and re-plug the Mobile Connector from both the vehicle and the electrical outlet.
The first error was “CP_a139 – Check device error code or message”. After that it was always “no power” (can’t remember the code) – so the car sees the charger is plugged in but not on.
In both sockets the plugs do not light up and the charging ports do not open – as if there is no power.
How do I reset and restart my Tesla
Although it doesn’t happen often, your Tesla may malfunction and require a reboot. The touch screen may become unresponsive or a generic error code may persist and never clear.
In such situations, you need to know how to reboot or reset your Tesla. After all, Tesla was meant to drive, not wait at a service center.
What is Soft Boot
A soft reboot is similar to the reset button on a phone or internet modem, restarting software while the electronic device is still powered on.
Tesla soft reset has two levels.
Touchscreen reset and full vehicle reset (also called power cycling in the Tesla owner’s manual):
It’s basically turning it off and then back on, but it’s better when more systems are involved).
- park with the door closed
- keep pressing the brake pedal
- Press and hold both scroll wheels and both buttons above the scroll wheels.
- Hold the brake and button until the screen reappears
Conclusion
The error message “Cannot charge – Service required” usually appears when there is a problem with the built-in charger or the charging port.
It can also be caused by something wrong with the electricity, such as a blown fuse.
In the worst case scenario, the error could mean that there is a bigger problem, such as a problem with the battery.
FAQs
What Causes Tesla Error Code CP_a139?6r
Charging was interrupted” error message from the Tesla app. This happens when the car is fully charged, but we are still doing maintenance fees.
This error message can be caused by switching between single-phase and three-phase charging. Try setting your charger to only provide single-phase or three-phase charging on Easee Cloud.
Can I Prevent Tesla Error Code CP_a139 from Occurring?
I tried searching for these error codes, but found none. I have a 2020 M3 with about 6,000 miles on it.
I live in Texas and in the last few weeks the amperage on my UMC dropped to 16A due to a heat failure.
My garage is probably 95F and the plug from the outside wall is hot but I didn’t think much of it at first as I started charging in the garage around 9pm. Charged late at night a few days later with no errors.
How can I contact Tesla customer support for help with an error code?
Visit Tesla’s official website and navigate to their support section for contact options.
Call Tesla’s customer service hotline for immediate assistance.
Are there any common error codes that Tesla owners frequently encounter?
Some common error codes reported by Tesla owners include “12V Battery Needs Service,” “Power Reduced, Contact Tesla,” and “Charging Equipment Fault.” However, the specific error codes can vary based on the model and software version.
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