Shimano w013 warning/error

['chantal']

hi there,

New owners of a shimano step e8000 bike. Just had it for a few days...first ride was all golden. Second ride, the motor worked but it would,cut out while I was pedalling ....I know it is torque sensing, but I was in boost mode going slightly uphill so it wasn't as if there was no resistance ...and I was only going 11kmh ..so less then 10 mph
Then today. I had an error message w013 and the motor would come on at all...display works and I can shift between the modes but no assist - cadence meter works fine too. Tried turning on and off etc but nothing leaped. Drove the bike to the shop and took the bike off the rack and voila, all was fine ? But then back on the trail, my partners bike had exactly the same issue

Looks to be a problem with the torque sensor ? Anybody else have had any issues with the torque sensor? Does it have something to do with the calibration ? Could it be related to turning the system on with a foot on the pedal ?...although we did try again, Moto on and off etc , one the bike off the bike..no luck....drove to the shop....bike works fine again....it's a mystery but it feels like it's something we do

 

[Tamas]

hi there,

New owners of a shimano step e8000 bike. Just had it for a few days...first ride was all golden. Second ride, the motor worked but it would,cut out while I was pedalling ....I know it is torque sensing, but I was in boost mode going slightly uphill so it wasn't as if there was no resistance ...and I was only going 11kmh ..so less then 10 mph
Then today. I had an error message w013 and the motor would come on at all...display works and I can shift between the modes but no assist - cadence meter works fine too. Tried turning on and off etc but nothing leaped. Drove the bike to the shop and took the bike off the rack and voila, all was fine ? But then back on the trail, my partners bike had exactly the same issue

Looks to be a problem with the torque sensor ? Anybody else have had any issues with the torque sensor? Does it have something to do with the calibration ? Could it be related to turning the system on with a foot on the pedal ?...although we did try again, Moto on and off etc , one the bike off the bike..no luck....drove to the shop....bike works fine again....it's a mystery but it feels like it's something we do

Did you figure out what happened? I had the same W013 warning on my new bike on the second day but it was only when I turned on the system when I was pedaling. When I turn it on with no foot on the pedals no warning.

 

[WelshBazinNZ]

I'm only guessing but it could potentially be a loose connection or something that causes the power to momentarily be lost to the controller unit causing it to reboot. If this happens when you're pedalling then it will interfere with the torque sensor setup when starting up. I had a similar issue to this when I owned a BH ebike.

 

[loch]

You can avoid Shimano's W013 error code by keeping your feet off the pedals when switching on the motor. The pedals should not move when you turn on the motor.