No, the OP posted this in the Cardinal sub-forum and the 3150 is a Cardinal model.
what are you using to tow this trailer with?
I am assuming that the dash light on the tow vehicle is showing the error message...
If so then it usually indicates a loss of connection with the trailer brakes, and you indicated as such because you said and when it does that there are no brakes
again I assume you are talking about the trailer brakes being lost?
and this happens only for a moment? How many times?
Does it happen early in the tow, or throughout the tow?
on bumpy highways, or smooth roads?
Again it is PROBABLY going to be a bad connection... just trying to narrow down where the problem might be in the wiring harness.