Go with confidence and fix the other one, already guided you how to proceed.
Waiting for a repair and RMA takes time which is very precious for miners.
Any mining hardware profitability is heavenly in inverse proportion to time.
Me or someone else are always here to support as far as we can.
You may try overclocking after you gained much confidence with your S3 hardware.
Legend! I'll go have some dinner (the missus is on my back) then I'll attempt a repair on this other unit. Wish me luck!
Good Luck, my all best wishes!