Mamba Max Magic smoke!

[Revracer]

I've been running my MM in a Revo for quite some time now. Its paired with a Mega ACn22/30/1 and been on both 3s and 4s. It has a fan on it too and I'm running 14/40 with close transmission two speed still functioning. I also have a few small holes in the front of the body to keep atleast a little outside air moving over it. I have NEVER had heat problems with it until recently which is why I put the fan on in. Today after driving for only 5 minutes and not even that hard smoke started to pour out of my truck and everything shut down... Is there anyway to fix this or can this be warrantied/ fixed for cheap or do I need to get a new ESC? Thanks