RideFixer app
RideFixer Android App Scan errors, compare sounds and diagnose e-bike issues on your phone.
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SW900 Error Code

E25 - Brake Error at Startup

Brake signal was detected during startup.

Medium severityCaution

What it means

Controller disables motor output while brake signal is active.

Common causes

  • Brake lever pressed
  • Sensor stuck
  • Brake wire fault

Symptoms

  • No assist after startup
  • Brake icon visible
  • Error clears when restarted

Suggested fixes

  • Release brake before power on
  • Check lever return
  • Adjust/replace brake sensor
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