When the error LED light on your NOCO Boost illuminates, it indicates a malfunction or safety issue that prevents the jump starter from operating correctly. This could be due to incorrect connections, low battery levels, extreme temperatures, or internal protection features being triggered.
NOCO Boost jump starters have built-in safety mechanisms to protect both the device and your vehicle. The error LED serves as a warning system, signaling that something needs to be addressed before proceeding.
Best NOCO Boost Jump Starters
If you’re looking for a reliable NOCO Boost jump starter, these are the top three models based on performance, safety features, and customer reviews:
NOCO Boost Plus GB40
A compact yet powerful 1,000-amp jump starter suitable for most cars, motorcycles, and small trucks. Its mistake-proof design prevents reverse polarity issues, making it ideal for beginners.
NOCO Boost HD GB70
With 2,000 amps of power, this jump starter is perfect for larger engines, including diesel trucks. It features advanced lithium technology for longer battery life and rapid charging.
NOCO Boost X GBX155
A heavy-duty 4,250-amp jump starter built for extreme conditions. It supports 12V and 24V vehicles, making it the best choice for professionals needing high-performance reliability.
Common Causes of the Error LED Light on NOCO Boost
The error LED light on your NOCO Boost can activate for several reasons. Understanding these common causes can help you quickly diagnose and fix the issue.
Reverse Polarity Connection
One of the most frequent causes of the error LED light is connecting the clamps to the wrong battery terminals. NOCO Boost jump starters have built-in reverse polarity protection, which prevents damage by disabling the unit when the clamps are reversed.
Solution: Disconnect the clamps and ensure the red clamp is on the positive (+) terminal and the black clamp is on the negative (-) terminal.
Low Internal Battery Level
If the NOCO Boost’s battery is critically low, it may not function properly and could trigger the error LED light. The jump starter needs a sufficient charge to deliver the required power for jump-starting a vehicle.
Solution: Recharge the NOCO Boost fully before attempting to use it. A full charge typically takes 3-6 hours, depending on the model.
High or Low Temperature Protection
Extreme temperatures—whether too hot or too cold—can cause the NOCO Boost to go into protection mode, triggering the error LED light. This is a built-in safety feature to prevent damage.
Solution: If the device is too cold, move it to a warmer environment before use. If it is overheated, allow it to cool down before attempting to use it again.
Excessive Cranking Time
Most NOCO Boost models have a safety limit on how long they can provide jump-starting power. If you exceed the recommended cranking time (usually around 5-10 seconds per attempt), the error LED light may activate.
Solution: Wait for at least 1-2 minutes between jump-start attempts to allow the internal circuitry to reset.
Defective or Damaged Unit
In rare cases, a malfunctioning NOCO Boost may display the error LED light due to internal issues, such as a faulty circuit board or damaged battery cells.
Solution: If none of the troubleshooting steps work, contact NOCO’s customer support for further assistance or to check if the unit is still under warranty.
How to Fix the Error LED Light on NOCO Boost
If your NOCO Boost displays the error LED light, follow these troubleshooting steps to resolve the issue and restore normal functionality.
Check and Correct Battery Clamp Connections
Since incorrect polarity is a common cause of the error light, start by verifying the cable connections.
Steps:
- Disconnect the NOCO Boost from the battery.
- Ensure the red clamp is securely attached to the positive (+) terminal and the black clamp to the negative (-) terminal.
- Reconnect and check if the error light disappears.
Charge the NOCO Boost Fully
A low internal battery can prevent the NOCO Boost from operating correctly.
Steps:
- Plug the NOCO Boost into a wall charger using a USB-C or micro-USB cable, depending on your model.
- Charge for at least 3-6 hours or until all indicator lights show full charge.
- Try using the jump starter again.
Allow the NOCO Boost to Cool Down
Overheating can trigger the error LED, especially if you’ve attempted multiple jump starts in a short period.
Steps:
- Turn off the device and disconnect it from the battery.
- Place it in a shaded, cool area for at least 15-30 minutes.
- Try again once it has cooled to a normal operating temperature.
Activate Manual Override Mode
If the NOCO Boost detects an extremely low voltage battery (below 2 volts), it may enter a protection mode, preventing normal operation. Manual override can help in this case.
Steps:
- Press and hold the Manual Override (⚡) button for 3-5 seconds until the error light turns off.
- Try jump-starting the vehicle immediately. (Note: Use this feature with caution, as it disables safety protections.)
Perform a Hard Reset
If all else fails, a reset may clear any internal errors and restore normal operation.
Steps:
- Disconnect the clamps from the vehicle.
- Press and hold the Power Button for 10-15 seconds until all indicator lights flash.
- Release the button and allow the unit to restart.
- Reconnect and test again.
Contact NOCO Customer Support
If the error LED persists after troubleshooting, the unit may have a hardware issue.
Steps:
- Check your purchase receipt and warranty status.
- Contact NOCO’s support team via their official website or authorized retailer.
- Request troubleshooting assistance or a warranty replacement if applicable.
How to Prevent Future NOCO Boost Error LED Issues
To avoid encountering the error LED light on your NOCO Boost, follow these best practices to ensure your jump starter remains in optimal working condition.
Charge the NOCO Boost Regularly
One of the most common reasons for error LED activation is a low internal battery. Keeping the unit fully charged ensures it’s always ready when needed.
Prevention Tips:
- Charge your NOCO Boost at least every 3-6 months, even if unused.
- Use a high-quality wall adapter (2A or higher) for faster charging.
- Store the unit with at least 50% charge if keeping it unused for long periods.
Store the Jump Starter in a Suitable Environment
Extreme temperatures can impact battery performance and trigger the error LED light.
Prevention Tips:
- Keep the NOCO Boost in a cool, dry place, away from direct sunlight.
- Avoid leaving it in extremely hot or cold environments, such as inside a vehicle during summer or winter.
- If exposed to extreme temperatures, allow the device to return to room temperature before using it.
Connect the Clamps Properly Every Time
Incorrect polarity is a frequent cause of the error LED activation.
Prevention Tips:
- Always double-check the connections before attempting to jump-start.
- Attach the red clamp to the positive (+) terminal and black clamp to the negative (-) terminal.
- If unsure, use the NOCO Boost’s built-in safety indicators to confirm correct placement.
Follow the Recommended Jump-Starting Procedure
Overuse or improper operation can lead to error warnings and potential damage.
Prevention Tips:
- Do not crank the engine for more than 5-10 seconds per attempt.
- Allow 1-2 minutes of rest time between attempts to prevent overheating.
- If the battery is deeply discharged (below 2V), use manual override mode cautiously.
Inspect and Maintain Your NOCO Boost
Regular maintenance can help prevent errors and extend the lifespan of your jump starter.
Prevention Tips:
- Inspect the clamps and cables for any signs of wear or damage.
- Keep the ports clean and free from debris to ensure proper charging.
- If the unit has been exposed to moisture, allow it to dry completely before use.
Conclusion
The error LED light on a NOCO Boost jump starter serves as a warning system, indicating potential issues such as incorrect connections, low battery levels, extreme temperatures, or internal malfunctions.
Understanding the causes behind this light and following the appropriate troubleshooting steps—such as checking polarity, charging the device, and using manual override—can help resolve most issues quickly.
To prevent future problems, regularly charge your NOCO Boost, store it in a proper environment, follow safe jump-starting procedures, and maintain the unit properly. By doing so, you ensure your jump starter remains reliable when you need it most.
If troubleshooting does not resolve the issue, contacting NOCO’s customer support for further assistance is recommended. Keeping your jump starter in top condition will save you from unnecessary headaches and keep you prepared for emergencies.
Frequently Asked Questions About the Error LED Light on NOCO Boost
Why is my NOCO Boost showing an error LED light?
The error LED light indicates a problem such as reverse polarity, low battery charge, extreme temperatures, excessive cranking time, or internal faults. Identifying the specific cause helps resolve the issue quickly.
How do I reset my NOCO Boost if the error LED stays on?
To reset your NOCO Boost:
- Disconnect the clamps from the battery.
- Press and hold the power button for 10-15 seconds until all indicator lights flash.
- Release the button and try using the device again.
Can I still use my NOCO Boost if the error LED is on?
No, the NOCO Boost will not function properly while the error LED is on. You must troubleshoot and fix the issue before using it to jump-start a vehicle.
What should I do if my NOCO Boost won’t charge and the error LED is on?
If the jump starter isn’t charging and the error LED remains on:
- Try using a different USB charger and cable.
- Clean the charging port to remove dust or debris.
- Check if the unit is too hot or too cold—let it adjust to room temperature.
- If the issue persists, contact NOCO customer support.
Why does my NOCO Boost error LED turn on during a jump start?
This can happen if:
- The clamps are connected incorrectly (reverse polarity).
- The vehicle battery is too low (below 2V).
- The unit overheated from excessive use.
- The jump starter needs a recharge before working properly.
How can I prevent the error LED light from turning on in the future?
To avoid this issue:
- Always connect the clamps correctly before jump-starting.
- Keep the unit fully charged and recharge it every 3-6 months.
- Store it in a temperature-controlled environment.
- Avoid excessive cranking; wait 1-2 minutes between attempts.