Error 14 on Bafang DP E170 / E180 / E181 Display

In plain English

The controller has reached its maximum safe temperature, and the system has cut power to protect it. After a long or hard ride, letting it cool is the fix. If it happens without much riding, a shop should check it.

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. 1Restart the system firstFree Bafang's manual says to restart first whenever an error code appears: switch the system off, wait a few seconds, then switch it back on. If the code doesn't go away, carry on with the steps below.
2. 2Switch off and let it coolFree Turn the system off and give the controller time to cool before riding again.
3. 3Use a lower assist levelFree Drop to a lower assist level, especially on long climbs, so the motor and controller work less hard.
4. 4Make sure air can reach the motor and controllerFree Bags, covers or packed mud around the motor or controller trap heat. Clear them away.
5. 5Check that the wheels spin freelyFree Lift each wheel and spin it by hand. Grinding, dragging or a rubbing brake makes the motor work harder.
6. 6Have 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.

• Floor pump with gauge

  Soft tires make the motor work harder and cost range.

  Link coming soon