Error 26 on Bafang DP E170 / E180 / E181 Display

In plain English

On torque-sensing systems, part of the pedal sensor also reports speed. This code means that speed signal isn't right. Check the speed sensor connector and look for damage, then leave the sensor itself to a shop.

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. 2Look for damage on the speed sensorFree Check the speed sensor and its cable for cracks, cuts or a knocked sensor.
3. 3Check the speed sensor cableEasy Switch off. Follow the thin cable from the speed sensor to its plug. It often runs near the chain or rear wheel, where it can get cut. Pull the plug apart and push it back together firmly.
4. 4Unplug and check the main connectorsEasy Switch off and remove the battery. Find the round waterproof plugs along the cables (usually near the handlebar, down the frame and near the motor). Pull each one apart, look for bent pins, water, green corrosion or melted plastic, then push it back together fully with the arrows lined up.
5. 5Have the sensor replacedShop job If the sensor is damaged or still faulty after these checks, a shop can test and replace it.

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.

• Speed sensor and spoke magnet

  Replaces a lost magnet or damaged speed sensor. Match your motor system.

  Link coming soon

• Electrical contact cleaner spray

  Cleans dirt and corrosion from connector pins and battery contacts.

  Link coming soon