Universal Robots Forum

Error code C294A0 after moving UR16e

After moving my UR16e arm from one location to another (and disconnecting most cabling in the process), I am receiving Error code C294A0: ADC: Critical error.

I’ve done a hard reboot a few times. I’ve also downloaded the latest Polyscope software. After both of these attempts, I am still receiving the error code mentioned.

Does anybody know what this may be about and how I may resolve it?

You likely shorted something in the I/O circuitry. Check the fuse inside the control box.

If that doesn’t solve the problem, you should contact the UR Service department at


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