Here are some previous power supply only replacements
2016-0908-0698
2016-0822-0406
2016-0105-0402
2015-0904-0274
Looking at my case history I've done this a dozen times (replaced just failed power supplies).
As to suggestions just to rma the switch and swap the power supply, this is covered under RTF (return to factory) and so I would have to send the switch in and the switch is in production and is working fine with the spare I had on hand.