Hi @ GlennJ
According to your description it seems that the Switch ICX7150 is stuck in boot mode, this requires to perform a software recovery and the only option to access the Switch will be through console, let me add the two guides that will help you to solve the problem, I advise you to read both guides first, and make sure you have the 2 applications and cables needed to perform the software recovery process either with a window or MAC computer.
How to console in the ICX-7150-12CP 'Ruckus Switch'
RUCKUS ICX 7150 USB TYPE C CONSOLE (tutorial video)
How to perform a Software recovery on an ICX7150 switch
3:After the problem is fixed and the switch starts up again as expected, you can check with the following commands that PoE is enabled for the switch to provide power to your PoE devices
"show version": Will display the current firmware and partition booting.(May look like this SPS08090k,SPS08080F what you need to worry is that always start with SPS)
"Show poe": Verify the ports using PoE, consumption and current budget.(what you need to check is that the Admin State is ON for all the ports from 1/1/1 to 1/1/12, as you see in my example the port 1/1/2 and 1/1/3 are on but also are on in the Oper state, because are in use
Note: if for some reason are no on, let me add the commands to enable it back.
interface ethernet 1/1/1 to 1/1/12