Universal Robots CB3 Error Code C55A91: Bootloader error, robot voltage too high

Universal Robots Robot Major Power

Model: CB3 (UR3/UR5/UR10) | Code: C55A91

Applicable Systems

UR3 UR5 UR10 UR3e UR5e UR10e UR16e UR20 UR30

Symptoms

Bootloader error, robot voltage too high

Power cycle the robot controller and perform a complete reboot sequence. If the error persists, update the software to the latest version.

Source: Universal Robots Official Error Codes Directory (https://www.universal-robots.com/manuals/EN/PDF/Shared/ErrorCodes/ErrorCodes.pdf)

Category: Robot