This topic is about D3 not L3.
I guess blissz can not help because he does not own L3.
Some general suggestions: try to keep cold the device. Stop and clean all fans.
Try to reflash with original firmware and if nothing helps contact bitmain support.
i know that, but i hope that he can find the problem, because it's not so different code and maybe the same error codes. But i also think its a problem with temperature. But i can't do so much, because the miner is in a colocation.