Acer 3 Serie Manual Del Usuario página 9

Error 5: Brake failure
Resolution methods:
1. The brake cable core is too long. Re-tighten the brake cable for
proper locking.
2. If the brake pad is damaged, replace it with the pad from the original
manufacturer.
Note: When a malfunction is detected, please contact an authorized
service center. Do not repair or modify scooter by yourself, as this can
void the warranty and possibly cause injuries.
EN-8