Manual for MY20B

Manual for MY20B

Brand: FAZUA

Category: Electric Bicycle Drive System

Document Type: Manual

Language: EN

Available Languages: EN , ES

Uploaded: April 20, 2026, 7:58 p.m.

Warranty Information

Your bicycle is covered by a Lifetime Limited Warranty.

Basic Operation of the Drive System

This manual covers the operation of your Fazua electric bicycle drive system. Key aspects include:

  • Attaching and Removing Components: Instructions on how to properly install and detach the drivepack and battery.
  • Switching the Drive System On/Off: Guidance on powering the system on and off using the remote.
  • Setting Support Level: How to adjust the level of pedaling assistance via the remote control.
  • Riding Instructions: Advice on gear shifting, range planning, and operating temperatures.
  • Charging the Battery: Steps for safely charging the battery using the provided charger.
  • Storage and Transport: Recommendations for storing and transporting the e-bike and its components.
  • Cleaning and Maintenance: Procedures for keeping the drive system clean and functional.
  • Troubleshooting: A guide to identifying and resolving common issues.

Troubleshooting and error codes

Problem Possible Reason / Solution
The engine feels weaker than usual. The drive system is brand new. Wait until the drive system is "run in". The drive system needs a few miles to develop its full power.
It is very hot and the heat management of the battery and/or drivepack limits the performance.
It is very cold, so the lithium-ion battery does not provide the usual performance.
The drivepack cannot be clicked out of the down tube. The locker is defective. Dirt could block the locker. Maybe you rode without a drivepack in bad weather conditions.
Contact a Fazua Servicepartner.
The drivepack makes buzzing noises. The polygon sleeve moves.
Contact a Fazua Servicepartner.
The drivepack makes clicking noises. The polygon coupling was loaded on one side.
Push the polygon coupling back into its original position to mobilize it again.
The upper LED on the remote lights up/flashes red. There is a connection error between drivepack and bottom bracket. Contamination at the interface may prevent the connection.
Clean the interface between the bottom bracket and the drivepack.
The upper LED on the remote lights up/flashes yellow. There may be a bad connection between the speed sensor and the bottom bracket.
Check the position of the spoke magnet. If you cannot find a fault, contact a Fazua Servicepartner.
The white LEDs on the remote flash. Software update
After a new firmware update, the remote is updated automatically. In this case, please wait and do not switch off the remote until the LEDs stop flashing.
The remote cannot be switched on. The battery is flat or has switched off due to a longer rest period (standstill).
Try turning on the battery using the on/off button.
Charge the battery if necessary.
The interface between the battery and the drivepack may be dirty.
Clean the interface between the battery and the drivepack.
The battery cannot be inserted into the drivepack. It does not lock into the battery compartment. The interface between the battery and the drivepack may be dirty.
Clean the interface between the battery and the drivepack.
The pedal support suddenly fails during the ride BMS protection function
Turn off the battery by pressing the on/off button for 3 seconds and then turn it on again.
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