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35

Detection circuit for 15V has an error

Stop riding Last verified: pending review Reviewed by: editorial team

Quick answer

Error code 35 refers to a fault in the detection circuit for the 15V power supply. This issue can prevent the system from functioning correctly and requires attention to ensure safe operation.

Stop riding Other Often DIY-friendly Intermediate (30–60 min)

Does this apply to your bike?

H700 · Bafang · Common displays: DP E171

Heads-up: the same number can mean different things on other systems — always check your drive system first. Browse all drive systems →

What you’ll notice

The display shows error code 35, indicating a fault in the detection circuit.

Likely causes, ranked

Start at #1 — causes are ordered by how often they turn out to be the problem.

#1 Faulty detection circuit

How to check: Inspect the wiring and connections related to the 15V detection circuit.

Troubleshooting steps

  1. Connect to BESST

    Tools: BESST diagnostic tool intermediate

    Connect the eBike to the BESST diagnostic tool to update the controller.

    If it passes →Proceed to clear the error code.
    If it fails →Replace the controller.
  2. Clear the error code

    easy

    Ensure all components are connected and turn on the system to check if the error persists.

    If it passes →Repair complete.
    If it fails →Contact Bafang for further assistance.

When to stop and get professional help

If the error persists after following the steps, or if there are visible damages to the components.

Never open, puncture, or disassemble the battery pack, and never bypass the BMS. See our safety guide.

More codes for H700

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Sources & verification

Last verified: pending review Reviewed by: editorial team

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