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Heybike Mars, Ranger, Cityscape, Cityrun, Tyson and more: error codes

The codes Heybike lists for its e-bikes, 21 to 25 and 30, which models each applies to, what it means and the first safe check.

Last edited Nov 8, 2026 by Pedalwise team Edit History Add a subpage

The Pedalwise team started this page from official manuals, support pages and repair videos. Fixed this yourself, or spotted something wrong? Help improve it.

Battery and electrical safety. Lithium-ion batteries can catch fire if they're damaged or charged wrong. Never open a battery pack, and stop using any battery that's swollen, hot, wet or smells burnt. Every edit to this page is checked by a second person before it goes live.

This page covers Heybike's own code list, which applies to the Cityscape, Mars, Race, Ranger, Explore, Cityrun, Brawn, Tyson, Ranger S, Horizon, Mars 2.0, Hauler and Hero. The display shows the code as a number. Error 25 applies only to the newer models with brake sensors, listed below (Heybike error codes).

A code that points at the motor, controller, wiring or battery is an electrical fault. Do only the plug checks on this page, with the bike off and the battery removed, and leave opening the motor, controller or battery, soldering or rewiring to a pro or the maker's support. See battery won't charge and when to call a pro.

Codes

  • Error 21: abnormal current, the motor won't run and pedal assist does nothing. Heybike starts with every cable firmly connected, pins straight and plugs lined up by their arrows.
  • Error 22: throttle error, the throttle doesn't speed the bike up or the bike moves without it. Check the throttle plug, its pins and alignment first.
  • Error 23: motor phase loss, rough or weak acceleration with odd motor noise or vibration. What to check
  • Error 24: abnormal hall sensor signal, rough or weak acceleration. What to check
  • Error 25: brake failure, the bike can't accelerate. Cityrun, Brawn, Tyson, Ranger S, Horizon, Mars 2.0, Hauler and Hero only. What to check
  • Error 30: communication error, the display isn't getting correct data from the controller. What to check

Before you call a shop

  • Switch off and check that both brake levers are back in their normal position.
  • Check each plug you can reach: firmly connected, pins not bent, arrows lined up, no cut or crushed wire (Heybike error codes).
  • For 25, unplug one brake connector at a time and restart. If the code goes away with one unplugged, that brake lever or sensor is the part to replace.
  • Heybike's later steps swap the pedal assist sensor, throttle, motor or controller. Those are parts jobs, best done with Heybike support or a shop.

Videos

How to Fix Electric Bike Error Code 24 from vBike Canada: a shop's general walkthrough of error 24 on a hub motor e-bike.
How to fix Error 30 on your Ebike from Rize Bikes: a shop's general walkthrough of a communication error.

More help

Sources

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If these steps didn't fix it, find a shop near you in our partner network. For battery or wiring trouble, look for shops marked Battery and electrical.

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