...and it reads with the same kind or error as the BBTech board.... arghh now I'm wondering if there is something fundamentally wrong with the MAX 31855. Has anyone out there ever got reliable readings from this chip?
Yes, I use the K-Type with the Adafruit board and it is very stable.
One of the reasons I wrote my own MAX31855 library was because all other libraries I could find simply ignore the MAX31855 returned error codes.