Technical information on batteries and bicycles
By : Tom

List of Shimano error codes: symptoms and solutions

Femme sur un vélo Shimano

When you ride your bicycle equipped with a complete Shimano system, it is possible to encounter technical problems. These problems can be identified by the error codes displayed by the system. In this article, we will look in detail at the error codes associated with Shimano batteries, whether they are fitted with five LED lights or a single LED light. By providing an in-depth explanation of the symptoms and solutions for each fault code, we aim to help cyclists quickly identify and resolve potential problems, ensuring a hassle-free and enjoyable cycling experience.

Error codes for Shimano batteries with 5 LED indicators

Lighting sequence n°1

Séquence d'éclairage 1 pour batterie avec 5 témoins LED

Conditions of occurrence: The battery over-current protection has tripped.

Solution: If this occurs during charging, disconnect and reconnect the charging plug. If the situation does not improve, ask the shop where you bought your bike to do the following.

  • Connect an original SHIMANO battery. Check that there are no faults with the power cord. If the error persists, contact your distributor.

Lighting sequence n°2

Séquence d'éclairage 2 pour batterie avec 5 témoins LED

Conditions: If the temperature exceeds the guaranteed operating range, the battery output is cut off.

Solution: If the temperature is above the temperature at which discharge is possible, leave the battery in a cool place, out of direct sunlight, until its internal temperature has dropped sufficiently. If the temperature is below the temperature at which discharge is possible, leave the battery indoors until its internal temperature has risen to an appropriate level.

Lighting sequence n°3

Séquence d'éclairage 3 pour batterie avec 5 témoins LED

Conditions: The battery does not recognise the drive unit.

Solution: If this happens during charging, disconnect and reconnect the charging plug. If the situation does not improve, ask the shop where you bought your bike to do the following.

  • Connect an original SHIMANO battery. Check that there are no faults with the power cord. If the error persists, contact your distributor.

Lighting sequence n°4

Séquence d'éclairage 4 pour batterie avec 5 témoins LED

Conditions of appearance: This indication appears if an error occurs during charging.

Solution: Remove the battery charger from the battery and press the power switch. If an error occurs, contact the shop where you bought your bike.

Lighting sequence n°5

Séquence d'éclairage 5 pour batterie avec 5 témoins LED

Conditions of occurrence: Electrical fault in the battery detected.

Solution: Remove the battery charger after connecting it to the battery. Make sure you press the power switch when the battery is connected. If an error appears for the battery only, ask the shop where you bought your bike to do the following.

  • Connect an original SHIMANO battery. Check that there are no faults with the power cord. If the error persists, contact your distributor.

Error codes for Shimano batteries with 1 LED indicator

Error code E023 - LED flashes 5 times repeatedly

Conditions of occurrence: Electrical fault in battery detected.

Solution: Remove the battery charger after connecting it to the battery. Make sure you press the power switch when the battery is connected. If an error appears for the battery only or if E023 is displayed on the speedo, ask the shop where you bought your bike to do the following.

  • Connect an original SHIMANO battery. Check that there are no faults with the power cord. If the error persists, contact your distributor.

Error code E024 - LED flashes 4 times repeatedly

Conditions of occurrence: The battery over-current protection has been triggered.

Solution: Ask the shop where you bought your bike to do the following.

  • Connect an original SHIMANO battery. Check that there are no faults with the power cord. If the error persists, contact your dealer.

The indicator flashes 4 times repeatedly

Conditions of occurrence: This indication appears if an error occurs during charging.

Solution: Remove the battery charger from the battery and press the power switch. If an error occurs, contact the shop where you bought your bike.

Error code W200 (W020) - Light flashes 3 times repeatedly

Conditions of occurrence: If the temperature exceeds the guaranteed operating range, the battery output is cut off.

Solution: If the temperature is above the temperature at which discharge is possible, leave the battery in a cool place, out of direct sunlight, until its internal temperature has dropped sufficiently. If the temperature is below the temperature at which discharge is possible, leave the battery indoors until its internal temperature has risen to an appropriate level.

Error code E025 - Light flashes 1 time repeatedly

Conditions of occurrence: The battery does not recognise the drive unit.

Solution: Ask the shop where you bought your bike to do the following.

  • Connect an original SHIMANO battery. Check that there are no faults with the power cord. If the fault persists, contact your distributor.

If in doubt about your Shimano battery, refer to the full Shimano documentation.

Conclusion

Shimano error codes are useful tools for diagnosing technical problems with your electric bicycle system. By understanding the symptoms associated with each error code and applying the appropriate solutions, you can effectively resolve problems and get the most out of your cycling experience. If you encounter persistent problems, don't hesitate to contact a professional for further technical assistance.

By following these tips, you'll be able to quickly identify and resolve potential technical issues, ensuring an enjoyable and hassle-free cycling experience.

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