It's not a dc motor, it's an ac permanent split capacitor type motor. It has two windings, in one direction, one winding is used for the run winding and the other a start/run winding, in the other direction their roles are reversed. Both windings in circuit all the time. Switching is done via triac's on the control board. In agitate mode, the motor direction is repeatedly changing direction. These washers are a piece of junk IMO. Many many failures for a washer design that is only 3 years old. You referenced the XQ4 model. The "4" is the revision level. The washer has already gone through 4 revisions in 3 years!