I have a #WW90M645OPO and it was recently pausing randomly through the cycle, which was getting worse. So at first I replaced the motors because the error code was for motors. Still the same. So I replaced the motor PCB (one with big heatsinks) which fixed it! Like a new machine again.
Then two weeks later that PCB died! No motor activity whatsoever. I had that PCB replaced by the same people, new PCB stopped working after about 2 hours. Assumed faulty batch so sent back and bought genuine from Samsung spares. That new PCB stopped working after about 1.5 hours. When I say stopped working I mean machine just drains and sits there, no whirs, no clicks or jolts from the motors, no countdown. Nothing. What on earth could be happening?? If I put my original motor PCB back in at least I still get the jolts where it tries to move the motors, so I know it's the PCBs. Any help would be appreciated!
Tim
