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Yamaha error code

Yamaha error ER: 'Er'/'ER' alternating with the main display

High severity Service soon

Can I ride home with this error?

Ride with caution. Assist may stop; pedal home carefully.

What it means

Display A shows 'Er', Display X shows 'ER' with a red assist lamp, Display C shows 'ER' with a description (battery errors say 'BATTERY'). Look up the number or message shown in the function display for details.

Likely causes

  • e-Bike system fault
  • Battery pack fault

Symptoms

  • 'Er' or 'ER' flashing in turn with the main display
  • Error description in the function display

How to fix it

  1. Note the code or message shown.
  2. Turn the power off and then on again.
  3. If it is not solved, have the bike (or battery pack, for battery errors) inspected by a dealer as soon as possible.
Still showing ER? The RideFixer app finds bike shops near you, so you know where to take it.

How urgent is it?

Dealer inspection as soon as possible if a restart does not fix it.

Applies to

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