Heybike error codes: E60 to E65, E021 to E030 and more

Match your bike to its manual

Heybike's blog tells you to record the exact code and what happened before it, and to identify the full model name, display version and market, since "Mars" or "Ranger" alone may not identify the system. Heybike lists every manual on its user manuals page. The code tables are printed in the display section of each. These manuals are image-based PDFs with no copyable text, and we read each table directly from the page.

Heybike's manuals don't say who makes the display or controller, so we haven't linked these to another maker's list. The Ranger S 2.0 manual does say that "the meaning of the error code is generally defined by the controller."

E60 to E65: Mars 3.0, Mars 2.5, Ranger 3.0 Pro, Saturn, Venus, Hybrid

These six manuals carry the same table (Mars 3.0 V5, Mars 2.5 v1, Ranger 3.0 Pro V5.1, Saturn, Venus V2 and the Hybrid manual v1). Heybike gives only a short name for each code and no repair steps, so the safe checks are ours, limited to what an owner can do.

Ranger S 2.0 (manual V3)

The same E60 to E65 list appears, with two differences in wording. E61 is "Turn the handle faulty" (the throttle), and E65 reads "Motor fault (missing phase)." It adds E66, Hall failure. Checks and contact advice are as above.

Alpha

("BMS" is the battery management system.)

Mars 2.0 and Horizon

Both print the same six codes: E021 (Current failure on Mars 2.0, "Abnormal current" on Horizon), E022 throttle, E023 motor phase, E024 Hall, E025 brake and E030 communication. Check throttle movement and brake levers for E022 and E025, check the battery is seated for E030, and contact Heybike for E021, E023 and E024.

Cityscape 2.0

Cityscape 2.0's manual (dated 20240419) lists numbers without an "E": 30 communication, 33 current, 34 throttle, 35 motor phase, 36 motor Hall, 37 brake, and 0 for "Normal condition." The manual's FAQ says to describe a problem in detail and send photos or videos with your order ID.

The Hero (750W mid-drive) manual shows its codes as flashing gear lights on an LED display, in two tables (display codes and controller codes). If you have a Hero, read that table in the manual rather than relying on the lists above.

Steps to try, in order

1. Stop riding and switch the bike off. Note the exact code and what you were doing.
2. Check the battery is seated and charged, using only the charger that came with the bike.
3. Release the brakes and check both levers return fully.
4. Look at what you can see: the throttle and its cable, the visible motor cable, the display cable. With the bike off, look for pinching, fraying or a loose plug. Don't pull on anything.
5. Switch on again. Heybike's blog says to contact support before changing advanced parameters. Don't copy settings from another display or app.
6. Test again. If the code returns, go to the contact box.

Heybike's app blog (27 Apr 2026) lists a Bike Diagnosis feature under its 4G advanced features, available only on compatible models. It says it can help identify errors such as abnormal current, motor phase loss and communication reception failure. It's a reading tool, not a repair.

FAQ

What does Heybike error code 21 mean? Heybike's manuals for Mars 2.0 and Horizon print it as E021, a current failure (Horizon says "abnormal current"). Newer manuals above don't list a 21 at all.

What does Heybike error 30 mean? In the Cityscape 2.0 manual, 30 is a communication issue. In Mars 2.0 and Horizon, E030 is a communication failure. In the E60 list, communication is E62.

What does E62 mean on a Heybike? A communication failure, per the Mars 3.0 manual and the other manuals that share its table.

Can I reset a Heybike error? Heybike's blog says there's no universal controller reset and tells you to identify your exact model first. Restarting is the only owner step we describe.

Other e-bike makers

Not on a Heybike? See the e-bike error codes hub. To see Heybike's warranty and service terms, read our Heybike brand page.

Written from Heybike's own manuals. EbikePost editors have not ridden or repaired these bikes. Check your own model's manual, because codes differ between models and model years.