# Power Supply T100 v2.0 Not working

**URL:** <https://forum.cloudray.com/t/power-supply-t100-v2-0-not-working/1717>\
**Category:** Laser Power Supply\
**Created:** [October 16, 2025, 10:53pm UTC](https://forum.cloudray.com/t/power-supply-t100-v2-0-not-working/1717 "2025-10-16T22:53:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![billraro](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.cloudray.com/billraro/32/892_2.png) [@billraro](https://forum.cloudray.com/u/billraro)\
**Post date:** [October 16, 2025, 10:53pm UTC](https://forum.cloudray.com/t/power-supply-t100-v2-0-not-working/1717/1 "2025-10-16T22:53:50Z")

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My almost new t100 power supply just stopped working- there is no fan action and no lights come on at all on the power supply - test button does nothing- there is power to the ac plug but no reaction from the unit at all - is there a fuse or circuit breaker that might be resettable?