The meaning of error messages are listed in the Error Codes section of the user manual and can also be found in this article.
|
Code
|
Causes |
User Troubleshooting |
Battery errors |
|
|
|
B1 |
Battery too hot while charging |
Contact a partner garage for professional inspection. |
|
B2 |
Battery too cold while charging |
Contact a partner garage for professional inspection. |
|
B3 |
Battery too hot while discharging |
Let battery cool down for 30 minutes. |
|
B4 |
Battery too cold while discharging |
Let battery warm up indoors. |
|
B5 |
Battery damage |
Contact the unu Support team for replacement battery. |
|
B6 |
Battery damage |
Contact the unu Support team for replacement battery. |
|
B8 |
Battery overheating |
Stop driving and let battery cool down for 30 minutes. |
|
B9 |
Battery overvoltage |
Restart scooter and try again. |
|
B11 |
Battery undervoltage |
Fully recharge battery. |
|
B12 |
Battery overcurrent while charging |
Restart scooter. |
|
B13 |
Battery overcurrent while discharging |
Disconnect battery for 5 minutes and try again. |
|
B14 |
Battery short circuit protection |
Disconnect battery for 5 minutes and try again. |
|
B32 |
Battery unresponsive |
1. Wait for 30 seconds for battery to recover |
|
B33 |
Battery activation failed |
1. Wait for additional 30 seconds to activate |
|
B34 |
Near Field Communication (NFC) error |
Contact a partner garage for professional inspection. |
|
B35 |
Internal communication error |
Contact a partner garage for professional inspection. |
Electronic errors |
|
|
|
E1 |
Battery voltage too high |
Contact a partner garage for professional inspection. |
|
E2 |
Battery voltage too low |
Charge battery and try again. |
|
E3 |
Scooter self-protection from motor short circuit |
Contact a partner garage for professional inspection. |
|
E4 |
Motor acceleration is blocked |
Release throttle and accelerate again. |
|
E5 |
Engine Control Unit (ECU) cannot read motor sensor |
Contact a partner garage for professional inspection. |
|
E6 |
Engine Control Unit (ECU) is damaged |
Contact a partner garage for professional inspection. |
|
E7 |
Engine Control Unit (ECU) detected open connection |
Contact a partner garage for professional inspection. |
|
E10 |
Engine Control Unit (ECU) failed during initialization |
Reconnect battery and try to drive again. |
|
E11 |
Engine Control Unit (ECU) overheating |
Stop scooter and let it cool down. |
|
E12 |
Problem detected when reading the throttle |
Contact a partner garage for professional inspection. |
|
E14 |
Throttle has been pulled during boot up |
Release throttle and try again. |
|
E16 |
Engine Control Unit (ECU) is damaged |
Contact a partner garage for professional inspection. |
|
Multiple errors |
|
|
|
Multiple problems |
When scooter has several errors |
Contact the unu Support team. |