Bafang DP E170.CAN / E180.CAN / E181.CAN code list · Bafang DP E170 / E180 / E181 Display

Error 08 on Bafang DP E170 / E180 / E181 Display

What it means + how to fix it From the manual

Quick answer

Error 08 on the Bafang E170 / E180 / E181 means “Error with the hall sensor signal inside the motor.” Most likely cause: a damaged motor cable or a loose or wet motor connector. Try this first: restart the system first.

Try this first

Free, and each takes under 5 minutes.

Restart the system first
Look over the motor cable

In plain English

Most motors have small Hall sensors that tell the controller where the motor's magnets are, so it can push at the right moment. Their thin wires run inside the motor cable. If one of those wires is damaged, a connector pin is loose or wet, or a sensor fails, you get this code. You may notice a jerky start, or the motor won't start at all.

Step-by-step checklist

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.

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.
2Look over the motor cableFree Follow the cable from the motor along the frame. On hub motors, look closely where it leaves the axle: it often gets pinched when the wheel is removed or crushed when the bike falls. Look for cuts, kinks or bare wire.
3Unplug and check the motor connectorEasy Switch off and remove the battery. Follow the motor cable to its plug (often near the rear axle or under the frame). Pull it apart, look for bent or pushed-back pins, water, corrosion or burn marks, let it dry, then push it back together firmly.
4Dry the bike out if it got wetModerate If the problem started after rain or washing, remove the battery and leave the bike somewhere warm and dry for 24 to 48 hours, then test again.
5Notice how the motor behavesModerate Does it stutter only from a standstill but run smoothly once moving? Tell the shop. It helps confirm a sensor problem.
6Have the motor testedShop job If the cable and connector look fine, a shop can test the motor's wiring and sensors. Opening a motor or working on its high-current wires is a shop job.

Parts you might need

As an Amazon Associate I earn from qualifying purchases. These links go straight to Amazon.

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

Electrical contact cleaner spray
Cleans dirt and corrosion from connector pins and battery contacts.
Link coming soon
Dielectric grease
A thin coat on connector seals helps keep water out after you clean them.
Link coming soon
Motor extension cable
Replaces a damaged section of motor cable. Must match your connector and pin count.
Link coming soon

Still not fixed?

Pages to try next:

When it's time for a shop: if you've worked through every step and the problem is still there, take the bike to an e-bike shop. Bring your notes on when it happens, plus the code.

Words on this page: Hall sensor Controller