How to reset e-bike controller

How to Reset E-Bike Controller: A Comprehensive Guide

E-bikes are a great way to enjoy cycling with less effort and more fun. But sometimes, you may encounter some problems with your e-bike controller, such as error codes, motor issues, or battery problems. In such cases, resetting your e-bike controller can often solve the problem and restore your e-bike’s performance. 

In this blog post, we will show you how to reset e-bike controller in a few simple steps. We will also explain what an e-bike controller is, why you might need to reset it, and what parameters you can adjust to customize your e-bike settings. So, let’s get started!

Understanding the E-Bike Controller

An electric bike’s performance and operation are largely dependent on its controller. Operating as the central nervous system of the e-bike, this little electronic part manages pedal assistance levels, power distribution, and seamless riding.

Like any technological device, the e-bike controller may experience problems that call for a reset. Let’s examine the e-bike controller’s features in more detail and consider the potential need for a reset.

Functions of the E-Bike Controller

Power Management

The controller regulates the power flow from the battery to the motor. It adjusts the power level to match the rider’s input and the chosen pedal assistance mode.

Pedal Assistance Control

Modern e-bikes have different pedal assistance modes, which let riders decide how much help they get from the motor while pedaling. The controller uses data from the bike’s sensors to change the motor output as needed.

Regenerative Braking

Some controllers have regenerative braking features, which turn braking energy into electrical energy. This feature improves energy efficiency and prolongs battery life.

User Interface

Many controllers have user interfaces, such as screens or buttons, where riders can see information like speed, battery level, and distance traveled. The controller gets data from sensors and shows it to the rider.

Reasons for Resetting the E-Bike Controller

Software Issues

E-bike controllers, like other electronic devices, can sometimes have software problems or glitches. You can fix these issues by resetting the controller, which will restore normal functioning.

Sensor Issues

The sensors that send signals to the controller might get out of alignment or become inaccurate. This can cause inconsistent pedal assistance or wrong data readings. A controller reset can help adjust these sensors.

Control Issues

Occasionally, the e-bike’s controls might not respond properly due to a temporary electronic error. A controller reset can solve this problem and reconnect the components.

Performance Issues

A controller reset can also be a good way to improve performance. It can help synchronize the communication between the different components, resulting in better rides and higher efficiency.

In the following sections, we will explain how to reset an e-bike controller effectively. It is important to follow the manufacturer’s directions and instructions for your specific e-bike model to ensure a safe and successful reset without losing any settings.

Keep in mind, while a reset can address many issues, some issues might be more serious and need professional help.

Preparing for the Reset

Resetting your e-bike controller is a simple process, but you need to prepare well before you start. This will make the reset go smoothly and keep you and your e-bike safe. Here are some things you need to do before you reset your controller:

Collect the Tools You Need

The tools you need may vary depending on your e-bike model and the reset method you choose. Check the manufacturer’s guidelines and get the tools they recommend, such as a screwdriver, your e-bike’s charger, or any other equipment.

Put on Safety Gear

Protect yourself from any electric shocks or sharp edges by wearing safety gear, such as gloves and protective eyewear, when you work on your e-bike.

Find a Good Workspace

Pick a workspace that is stable and well-lit to do the reset. Make sure the surface is flat so your e-bike won’t fall over during the process.

Switch Off the E-Bike

Before you try to reset anything, turn off your e-bike completely. This will avoid any electrical problems and let the system reset properly.

Unplug the Battery

Some reset methods may require you to unplug the battery from your e-bike. If that’s the case, follow the instructions in your e-bike’s manual carefully to do it correctly.

By doing these steps, you will be ready to reset your controller successfully. Remember, safety comes first, so be careful, follow your e-bike’s manual, and go ahead with confidence.

Electric Bike Parameters

You will find the same pattern in most e-bike controllers. This is because they have the same P and C values and settings. If they are different, you should look at the manual. The following section will help you understand the P and C parameters and how they work for your e-bike controller functions.

Electric Bike P Parameters

  • P1: Motor functions
  • P2: Speed sensors
  • P3: Pedal Assist Functions (ranges from 0 to 5)
  • P4: Throttle function (0 and 1)
  • P5: Motor and battery functions

Electric Bike C Parameters

  • C1: Throttle startup settings
  • C2: Shows motor classification code
  • C3: Power assist ratio (ranges from 0 to 5)
  • C4: E-bike handlebar
  • C5: Operating current
  • C6: Backlit LCD brightness (ranges from 1 go 5)
  • C7: Cruise setting
  • C8: Motor temperature
  • C9: Password setting
  • C10: Factory reset setting (Pressing Y will factory reset)
  • C11: LCD attribute setting (ranges from 0 to 2)
  • C12: Min operating voltage
  • C13: ABS brake setting
  • C14: Power assist setting (ranges from 1 to 3)

Step-by-Step Guide to Reset the Electric Bike Controller

To reset your e-bike controller, follow these steps:

  • Turn on your battery from the control panel of your e-bike controller.
  • Press and hold the function button for 3 seconds.
  • Press and hold the up and down button for 3 seconds. This will let you access and change your bike’s default settings.
  • You will see a part of the screen flashing. This indicates your current setting. To switch between different parameter settings, press and hold the function button and then the up and down button.
  • Choose the P1 parameter by pressing the function button in the center.
  • To go to the C parameter, press and hold the function button and then the up and down button. This will show you the C parameter settings.
  • Press the function button to select the C5 option.
  • Change the C5 value to 1 by pressing the up and down button.
  • To save the setting, press and hold the function button for 3 seconds.
  • Finally, to reset all the functions of your e-bike controller, repeat the steps above and choose the C10 parameter. When you are in C10, press Y. This will restore your e-bike controller to its factory settings.

Common Reset Methods

You can reset your e-bike controller in two ways: soft reset and hard reset. These methods are for different situations and problems you might have with your e-bike’s performance.

Soft Reset

A soft reset is like restarting your system. It’s good for fixing small issues without changing your settings. To do a soft reset, turn off your e-bike and unplug the battery. Wait for a few minutes and then plug the battery back and turn on the e-bike. This process lets the system refresh itself and usually solves temporary issues.

Hard Reset

A hard reset is more thorough and can reset your settings to default. It’s good for serious issues or when your e-bike’s performance is very bad. To do a hard reset, follow the manufacturer’s instructions to find specific buttons or combinations.

Press and hold these buttons for a certain time while the e-bike is off. This action will start a more deep system reset, which might need the adjustment of some parts.

Before you try any reset, check your e-bike’s manual and manufacturer guidelines carefully to make sure you are doing it correctly for your electric bike model.

How to Soft Reset E-Bike Controller?

To reset the controller, you can change two values based on your bike type. The first value, C10, restores the controller’s factory settings. This makes the controller recognize the bike parts and use the default settings for them.

If your bike has no C settings and only P settings, you should go to P 16 and set it to 0.

Let’s see how these two methods work.

Soft Reset to E-Bike Controller Using P16 Parameter

Follow these steps to access your e-bike settings, :

  • First of all, switch on your ebike.
  • Simultaneously press and hold the (+) and (-) buttons for 3 seconds. You will enter the e-bike settings. 
  • Repeatedly press the power button until you see P16 on the display.
  • Press and hold the (-) button for 5 seconds. The LCD should flash with 0 values.
  • The final step is to save and exit. For this, press and hold the (+) and (-) buttons together for 3 seconds.

Soft Reset to E-Bike Controller Using C10 Parameter

  • Switch on your e-bike.
  • Hold both UP and DOWN buttons simultaneously to access the e-bike settings menu.
  • Press the function button (the middle one) until you reach C10.
  • Press UP or DOWN to change the value to “Y”. It will reset the controller of your e-bike.
  • Hold both UP and DOWN buttons again to save and exit the settings menu.
  • Switch off your ebike and then switch it on again.

How to Hard Reset Your E-Bike Controller?

To perform a hard reset on the e-bike controller, you need to activate the self-learning feature. This feature has two functions for the e-bike:

  • Phase learning: it synchronizes the phase of the motor and the controller.
  • Direction setting: it determines the rotation direction of the motor.

The self-learning feature has a special cable that has two plugs connected to each other in the controller.

Follow these steps to do a hard reset:

  • Lift the bike off the ground completely. This is important because the motor will run automatically during the reset.
  • Remove the controller.
  • Find the self-learning cable. It is the only cable that is not attached to any other part of the bike and is plugged into itself, as shown in the picture.
  • Unplug the cable and you will see that the motor spins automatically.
  • Plug the cable back in and check that the motor spins clockwise. If it spins counterclockwise, unplug the cable again and plug it back in.

After completing the above steps, you have done the hard reset for the e-bike controller.

How Do I Reset My Electric Bike to Factory Settings?

You can refer to the owner’s manual for detailed information on how to reset an e-bike to factory settings. However, following are the standard procedures for resetting an e-bike:

  • Find the e-bike’s power button. In most e-bikes, you can find it either on the handlebars or close to the battery.
  • Switch off the e-bike.
  • Remove the battery from the e-bike.
  • For approximately ten seconds, press and hold the power button.
  • Put the battery back in and switch on the e-bike.

If this doesn’t solve the problem, you might want to check the owner’s manual for more detailed instructions. It may take more than one step to return an e-bike to its factory settings, depending on the model.

How Do I Reprogram My Electric Bike Controller?

To reprogram an e-bike controller, you need to modify the firmware or software that runs the bike’s electric motor. This is not a simple task and it needs special skills and tools. Most users cannot do it by themselves. 

We advise you to ask a professional e-bike technician or the bike’s manufacturer for help if you want to reprogram your e-bike controller.

However, if you want to reprogram your e-bike controller yourself then you will need to use a computer and specialized software to alter the firmware. 

It will enable you to perform tasks like adding new features to the bike, upgrading the firmware to a newer version, or changing the controller’s settings. 

Be very careful when you reprogram your e-bike controller, because wrong changes can harm the controller or the bike.

Troubleshooting After the Reset

Once you have reset your e-bike controller, you need to test it on a ride to make sure that the problems you had are fixed. Follow these steps to troubleshoot your e-bike after the reset:

Test the Controls 

Check that the controls, such as the throttle, pedal assist, and display, work well and respond to your commands. The controller should recognize your inputs correctly.

Check Pedal Assistance 

Try different levels of pedal assistance and see if the motor adjusts accordingly. Pedal gently and hard to see if the assistance is stable.

Observe Power Delivery 

Watch the power delivery as you speed up and ride at different speeds. The motor should provide smooth power changes and not have any sudden spikes or drops.

Monitor Display Information 

Look at the display for correct information such as speed, distance, and battery level. Make sure that the display shows what you expect based on your riding conditions.

Braking and Regeneration 

If your e-bike has regenerative braking, check if it works as it should. Test the brakes to see if the regeneration kicks in and if the braking is even.

Ride Comfort 

Notice any strange vibrations, noises, or feelings during the ride. Do not ignore any discomfort or weird behavior, as these could mean more issues.

A reset can fix many issues, but sometimes the issue might still be there or get worse. If you still have problems after troubleshooting, you should contact a professional technician or the manufacturer’s support for help.

To keep your e-bike running smoothly, you should do regular maintenance, follow safety rules, and update the firmware when needed.

Preventative Measures and Maintenance

To keep your e-bike controller working well and lasting long, you need to do more than just reset it once in a while. Here are some ways to take care of your e-bike and prevent problems:

Avoid Moisture

Moisture can harm the electronics of your e-bike. Keep your e-bike in a dry spot and don’t ride it in heavy rain or through waterlogged areas that could let water get into sensitive parts.

Watch the Temperature

Very hot or cold temperatures can affect how your battery works and how your e-bike performs. Don’t leave your e-bike under the sun for too long or expose it to freezing conditions.

Check the Connectors

Make sure the connectors between the controller, battery, and motor are in good shape. Connectors that are loose or rusty can cause performance issues. Keep them clean and tight.

Update the Firmware

Manufacturers often release firmware updates to fix problems, improve compatibility, and enhance performance. Look for updates and follow the steps to keep your e-bike’s software up to date.

Take Care of the Battery

Charge and store your battery the way the manufacturer advises. Charging or discharging the battery too much can shorten its life.

Get Regular Maintenance

Have your e-bike checked by a professional or do it yourself periodically. They can spot and fix potential issues before they get worse.

Keep it Clean

Wipe your e-bike regularly to keep it clean. Cleanliness helps avoid dirt and debris from building up in sensitive components.

By following these tips and practices, you can reduce the chances of having issues that require frequent resets. Regular maintenance and care will make your e-bike controller last longer and give you a more satisfying and hassle-free riding experience.


Resetting your e-bike controller can help you solve many common issues with your electric bicycle. It is a simple and easy process that anyone can do. 

By following the steps in this guide, you can reset your e-bike controller and restore it to its original factory settings. This will ensure that your e-bike performs optimally and safely. 

Remember to take good care of your e-bike controller by following the preventive measures and maintenance tips we shared. By doing so, you can extend the lifespan of your e-bike controller and enjoy a smooth and trouble-free riding experience.

If you have any questions or feedback, please feel free to leave a comment below. Don’t forget to share this blog post with your friends. Happy riding! 

Frequently Asked Questions (FAQs)

Where is e-bike controller?

The controller is the internal component that controls the e-bike. The controller housing is where the battery connects with the controller.

What’s inside an e-bike controller?

The controller is like the brain of the ebike. It has a circuit board with sensors and firmware that handle all the communication and operation of the e-bike’s essential features.

How long does an electric bike controller last?

The controller and other components of the e-bike degrade with use. You can extend their lifespan by maintaining your bike well, charging it regularly, keeping it clean, and avoiding extreme temperatures. Usually, the controller, battery, and motor can last for three to four years.

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