E71 Error on Velotric

In plain English

The system found a problem in a light circuit, such as a broken wire, a short or a failed light. Check the light wiring first. If the code stays, a shop can test the light and controller.

Work from the top. Steps go from free and easy to shop jobs. Switch the bike off before touching any connector. Tick each step as you go. Your progress is saved on this device.

1. 1Turn it off and on againFree Switch the display off, wait 30 seconds, then switch it back on. If the code clears, note what you were doing when it appeared, in case it comes back.
2. 2Check the light wiringEasy Switch off. Unplug the headlight (and tail light, if it has one), then switch on. If the code clears, the light or its cable is shorted or damaged.
3. 3Have the controller testedShop job If the wiring checks out, the controller may be faulty. A shop can test it and replace it if needed.

Parts you might need

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Only buy a part if the free steps didn't fix it. Always match the voltage and connector type to your bike.

• Rechargeable tail light (USB)

  A self-powered tail light that needs no wiring. To replace a built-in tail light instead, match the light voltage your bike supplies.

  View on Amazon

• Rechargeable bike light set (USB)

  The simplest fix if your built-in light has died: a self-powered light that needs no wiring. To replace the built-in light instead, match the voltage your controller supplies (your manual lists it).

  View on Amazon