Na, if there was an issue with the fan the metal of the heatsink would be really hot as the fan isn't cooling it. If your CPU is getting to 70ºC but the metal is cold then it seems like poor contact.
There's not like a bit of clear plastic on the bottom of the 212+ you need to remove or something is there?
No it was used on my last PC and it worked fine,in fact its about 4 years old now