13" Macbook Sleep Issue

13" WHT Macbook, after closing the computer and allowing it to sleep, upon re-opening it, it restarts itself. Sometimes just stays black screen with HD spinning. New battery connector with sleep switch has been installed, P-RAM reset, PMU reset, no help. Any ideas?

Did you try a SMC reset? LINK If that doesn't work, take it back to whoever installed the new battery connector and sleep switch.

Regards.

I installed the sleep switch. I am a certified Mac Tech, I was just hoping someone might think of something other than a Logic board because I personally know how much that cost and what it involves. Thank you for your reply though.