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Electric Bike Company Error Codes
Written by: Tom Fortune | January 30, 2026 | Time to read 6 min
If your Electric Bike Company e-Bike shows an error code, this guide explains what it means and how to fix it, even without factory support.
More about the Author: Tom Fortune
Tom is a Brit living in the French Alps. When he's not creating written and video content for various brands, he's either pedalling or snowboarding around his local mountains. E-Bikes have unlocked the potential for Tom to explore Alpine terrain and get away from the crowded bike parks. He is only too keen to share his knowledge and experience with other riders.

If your Electric Bike Company e-Bike displays an error code, it’s usually the motor controller detecting an electrical or sensor condition it can’t safely work around. These Electric Bike Company error codes are common on hub-motor e-Bikes and often relate to wiring, battery voltage, or sensor signals. Even though the company is no longer operating, many Electric Bike Company bikes are still riding around, and their error codes are still relevant for owners looking to troubleshoot problems or arrange repairs.
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Table of Contents
Electric Bike Company Overview
Why Electric Bike Company Error Codes Appear
How Electric Bike Company Error Codes Are Generated
Common Symptoms You May Encounter
Complete List of Electric Bike Company Error Codes
Electric Bike Company error code 21 – Current abnormality
Electric Bike Company error code 22 – Throttle error
Electric Bike Company error code 23 – Motor phase error
Electric Bike Company error code 24 – Motor Hall sensor error
Electric Bike Company error code 25 – Brake sensor error
Electric Bike Company error code 26 – Battery undervoltage
Electric Bike Company error code 27 – Battery overvoltage
Electric Bike Company error code 28 – Speed sensor error
Electric Bike Company error code 29 – PAS / cadence sensor fault
Electric Bike Company error code 30 – Communication error
Electric Bike Company error code E01 – Display communication error
Electric Bike Company error code E02 – Controller communication error
Electric Bike Company error code E03 – Controller internal fault
Electric Bike Company error code E04 – Motor internal fault
Electric Bike Company error code E05 – No motor output detected
Electric Bike Company error code E06 – Throttle malfunction
Electric Bike Company error code E07 – Brake signal error
Electric Bike Company error code E08 – Sensor communication error
Electric Bike Company error code E09 – Voltage abnormal (high or low)
When to Visit an E-Bike Repair Shop
Electric Bike Company Overview
Electric Bike Company was a California-based manufacturer that focused almost exclusively on cruiser-style electric bikes. The company filed for bankruptcy in 2025, but its bikes remain widely used thanks to their simple, durable designs. Rather than producing high-performance electric mountain bikes and road bikes, the brand specialized in upright, relaxed e-Bikes intended for boardwalks, bike paths, and everyday transportation.
Some of the most recognizable Electric Bike Company models included the Model C, Model S, Model X, and Model E. These bikes shared a similar design philosophy, featuring step-through or low-step frames, wide handlebars, fat tires, and a strong emphasis on comfort over speed or aggressive handling. At the time of sale, many bikes were offered with extensive customization options, including multiple battery sizes, color choices, accessories, and drivetrain configurations.
Across the lineup, Electric Bike Company bikes generally used rear hub motors, making them classic hub-motor e-Bikes rather than integrated mid-drive systems. Power came from external or semi-integrated lithium-ion batteries, while pedal-assist was controlled by a cadence or PAS sensor. Control was managed via a basic LCD display connected to a generic motor controller. Because the brand relied on widely used, non-proprietary components, the error codes seen on these bikes are standard controller-based fault codes that remain relevant today.
Although the Electric Bike Company is no longer operating, many of its e-Bikes are still in daily use. The good news for owners is that these systems can still be serviced by independent e-Bike repair shops, and the error codes they display are common across many hub-motor electric bikes, not unique to the brand.
Why Electric Bike Company Error Codes Appear
Electric Bike Company error codes appear when the motor controller detects electrical values or sensor signals outside its programmed limits. This does not automatically mean that a component has failed. In many cases, the system is responding to unstable input rather than permanent damage.
Common triggers include:
- Loose motor phase wires or connectors
- Throttle signals outside the expected voltage range
- Brake sensors are remaining engaged
- Battery voltage is dropping too low under load
- Speed or cadence sensor interruptions
- Display-to-controller communication issues
Because these e-Bikes use modular wiring and exposed connectors, vibration, transport, or aging components can easily trigger an error code even if the bike was working normally before.
How Electric Bike Company Error Codes Are Generated
Electric Bike Company e-Bikes use controller-generated error codes, meaning faults are detected by the motor controller rather than a brand-specific motor computer. This is typical of hub-motor e-Bikes and explains why these same numeric error codes appear across many cruiser-style electric bikes using similar electronics. When the controller cannot trust incoming data, it disables motor output as a safety measure.
Common Symptoms You May Encounter
When an error code appears on an Electric Bike Company e-Bike, riders typically notice changes in pedal assist behavior rather than mechanical problems. Common symptoms include:
- Motor assistance cutting out suddenly
- Throttle input doing nothing
- Power returning after a restart, then dropping again
- An error code appears immediately on startup
- The LCD display stays powered on while motor assistance is disabled
These behaviors are intentional. The controller disables power rather than guessing when it can’t rely on sensor data.

Complete List of Electric Bike Company Error Codes
Error Code 21 – Current Abnormality
Cause: The controller has detected abnormal current draw. This Electric Bike Company error code often appears when the motor is under heavy load, internal resistance increases, or controller regulation becomes unstable.
Solution: Power off the e-Bike and allow the system to reset. Resume riding at a lower assist level. Persistent errors should be inspected by a technician.
Error Code 22 – Throttle Error
Cause: The throttle signal is outside the controller’s acceptable voltage range. This may occur if the throttle is damaged or if throttle input is detected during startup.
Solution: Restart the e-Bike without touching the throttle. Inspect throttle wiring if the error persists.
Error Code 23 – Motor Phase Error
Cause: One or more motor phase wires are not behaving as expected. This often points to a loose connector or damaged wiring near the motor axle.
Solution: Stop riding immediately. Motor phase wiring should be inspected before further use.
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Error Code 24 – Motor Hall Sensor Error
Cause: The Hall sensor inside the motor is not providing reliable rotor position data, which is required for smooth motor operation.
Solution: This usually requires professional motor inspection or replacement.
Error Code 25 – Brake Sensor Error
Cause:A brake cut-off sensor signals that the brakes are on, even when the brake lever is released.
Solution: Ensure brake levers return fully. Inspect brake sensor wiring and alignment.
Error Code 26 – Battery Undervoltage
Cause: The battery voltage has dropped below the minimum required for safe operation of the e-Bike system, particularly under load.
Solution: Fully charge the battery. Repeated undervoltage errors may indicate battery aging.
Error Code 27 – Battery Overvoltage
Cause: The system has detected battery voltage above its safe operating range, often immediately after charging.
Solution: Disconnect the charger and restart the bike. Persistent errors require battery inspection.
Error Code 28 – Speed Sensor Error
Cause: The controller is not receiving valid speed data, usually due to sensor misalignment.
Solution: Inspect and realign the speed sensor and magnet.
Error Code 29 – PAS / Cadence Sensor Fault
Cause: Cause: The cadence sensor is sending inconsistent or implausible pedal assist data.
Solution: Restart the system. Persistent faults require sensor inspection.
Error Code 30 – Communication Error
Cause: A communication error has occurred between the display and controller, which is common on hub-motor e-Bikes with modular wiring.
Solution: Inspect display connectors. Persistent errors require controller diagnostics.
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Error code E01 – Display communication error
Cause: Cause: The LCD display is not communicating correctly with the controller.
Solution: Restart the e-Bike and inspect the display connection.
Error code E02 – Controller communication error
Cause: The controller cannot communicate reliably with one or more system components.
Solution: Professional diagnostics are required.
Error code E03 – Controller internal fault
Cause: An internal controller malfunction has been detected.
Solution: Controller replacement is usually required.
Error code E04 – Motor internal fault
Cause: The motor has detected an internal electrical or mechanical issue.
Solution: Stop riding and have the motor inspected.
Error code E05 – No motor output detected
Cause: The controller is issuing commands, but the motor is not responding.
Solution: Inspect motor cables and connector.
Error code E06 – Throttle malfunction
Cause: The throttle signal is missing or outside acceptable limits.
Solution: Inspect or replace the throttle.
Error code E07 – Brake signal error
Cause: The brake cut-off signal is continuously active.
Solution: Inspect brake levers and sensors.
Error code E08 – Sensor communication error
Cause: One or more sensors are not communicating correctly with the controller.
Solution: Restart the e-Bike. Persistent issues require wiring inspection.
Error code E09 – Voltage abnormal (high or low)
Cause: Battery voltage is outside the system’s safe operating range.
Solution: Fully charge the battery or allow it to cool. Repeated issues require diagnostics.

When to Visit an E-Bike Repair Shop
Because the Electric Bike Company is no longer operating, dealer support is not available. But you can get help from an independent e-Bike repair shop. If motor phase or Hall sensor errors appear, the controller reports internal faults, voltage-related errors occur repeatedly, or assist cuts out unpredictably. If you’re nervous about not being able to get support for your Electric Bike Company e-Bike, you might want to get a new one. Check out the selection of Upway’s reconditioned electric bikes.
Preventing Future Error Codes
Many issues with Electric Bike Company e-bikes start with wiring and connectors. Regularly inspecting visible cables near the motor and battery can prevent problems before they escalate. Avoid riding with a nearly empty battery, keep connectors clean and dry, avoid pressure washing electrical components, and store batteries indoors during extreme temperatures.
Frequently Asked Questions
Can Electric Bike Company bikes still be repaired?
Are these error codes brand-specific?
Does an Electric Bike Company e-Bike error code mean the motor is ruined?
Can I keep riding my e-Bike even though an error code is showing?
Do replacement controllers work on these bikes?
When should I stop riding immediately?
Key Takeaways
- Electric Bike Company error codes come from standard hub-motor controllers
- Many issues are electrical or sensor-related rather than catastrophic failures
- Even without factory support, these e-Bikes remain serviceable by independent shops
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