Hi I live in Grenada and that’s about as far as the moon when trying to get help with anything Apple, so I have a 2014 i think IMac that blew its power board which I managed to get replaced on island. However it came back with the fan on full and the computer worked like stuck in quicksand. System report said error on PFM006. I installed Mac fans app which worked straight away, but apparently the computer still thinks it’s to hot and that’s why the kernel is sky high and everything is so slow, really slow ! So has anyone got a fix for this problem, I have done all the recommendations off the web ie re booting but nothing has worked. Any help really appreciated, thanks.