problem has now been solved, it was a combination of issues…

first, a previous tech had redone teh water manifold bringing the water at one end, splitting into 3 T along the long branch with the 4th outlet being at the other end. We redid the manifold so that water comes in at the middle with Ts on each side. This seems to have lower coil temps.

The other issue was controller board problem. While it seems that the compressor was cutting off because it was too hot, it was in fact the controller.

so far, it's been almost a week and every thing is running fine.