Hi Henry,

I'm not sure what this alarm actually is. dT is difference in temperature (probably between inlet and outlet of LP element).

The only thing I can think of is the cooling water temperatures.

If the cooling water temperature rise over the LP is too high, and all else is normal (LP air outlet temperature, intercooler pressure, etc), then I would say that the cooling water flow is too small.

Maybe there is a blockage somewhere, or a valve is closed to much?

Good luck and let me know if you fixed this problem. Just comment on this post.

Cas.