Laing DDC pump repair PCB mod

[wizard1238]

I'm not saying it doesn't work, I'm saying it doesn't work as well as it could.

Heat sinks require a constant supply of moving air in order to be able to efficiently shed the heat they collect, yours isn't getting any fresh air because it's inside the pump housing. If the housing had even a few holes in them, the heat sink would do a much better job.

Yes, It should perform better if open to free air you are right
But it has already let the sanyo driver run at it's full potential 1.5A inside the original plastic housing.
Without it, we can only use stock top and test shows that the sanyo driver will overheat at only 0.9A even run nude without the original plastic housing