Mac mini Power Led won't work

It is possible, however unlikely, that the power indicator led has failed. The only fix for that would be to have the Mac serviced. As far as I know there is no way in software to silence the status indicator light.

You can make a Genius Bar appointment for hardware service using this link:

Contact Apple for support and service - Apple Support

Get your Mac repaired and see how much will it cost:

Mac Repair & Service - Apple Support

I have the exact same issue and this happened after upgrading to OS 15.1. Please let us know if you find a fix. Apple support remotely checked my M1 mini and all seems to be working fine except on the physical device no LED light.

Does the status light not work as described here?: Mac computer status indicator light behavior - Apple Support

Has this Mac mini M1 been opened up for some type of repair or service work..?

Same problem here! It seems to be a software issue because it stopped working for a while, came back and then stopped again.