I decided to send another request to support through the cointerra website asking specifically what the D45 RED LED means and how can I fix it. This is the reply I got. What a fucking bitch and Fuck CoinTerra 
Hi ,
We are not currently releasing that information.
Best regards,
Laura
CoinTerra Support Team
Hi ,
We are not currently releasing that information.
Best regards,
Laura
CoinTerra Support Team
I got pretty much the same response from Marshall when I was having overheating issues. I sent him an email asking which core was which so I could narrow down the ones that were getting hot and he told me he could not comment on that. Cointerra will not help their customers in any way.