# Power supply unit failure

**URL:** <https://forum.universal-robots.com/t/power-supply-unit-failure/38676>\
**Category:** Robot Communication\
**Created:** [February 20, 2025, 9:42am UTC](https://forum.universal-robots.com/t/power-supply-unit-failure/38676 "2025-02-20T09:42:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![lakshmi.subramanian](https://avatars.discourse-cdn.com/v4/letter/l/f17d59/32.png) [@lakshmi.subramanian](https://forum.universal-robots.com/u/lakshmi.subramanian)\
**Post date:** [February 20, 2025, 9:42am UTC](https://forum.universal-robots.com/t/power-supply-unit-failure/38676/1 "2025-02-20T09:42:30Z")

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![ur5 power supply unit failure](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/2X/a/a42e519dabbb6cb185a4ef0dafffa03d5d938fd1.jpeg)  
there seems to be a problem powering up the robot with C72A1 error code. does anyone know how to solve this?

Thanks.