duet sport spin cycle
 

the machine runs perfect through all cycles when empty, but with clothes in, it will not go into spin. the pump is new, the lines are clean, ther is no noise from the motor, it turns feely, and the CCU board is new. I looked for a weight sensor, there isn't one. any suggestions?

Interesting problem, try and do the diagnostics that are in the tech sheet you should have found. If that fails you can try replacing the motor control board and if you buy it from this site and it does not fix the problem you can return it.