A washing machine may stop spinning because of malfunctioning direct drive motor coupling or a bad door lock. A defective lid switch may also cause a washer to stop spinning.
The direct drive motor coupling transfers power from the motor to the transmission in some top-loader washers. In most models, one must remove the cabinet to access the direct drive motor. Most front-loading and some top-loading washers have a door lock to prevent the door from being opened while the unit is running. When this lock malfunctions, the door does not lock and the washer does not agitate or spin. Washers with error displays may show a code for this problem, but it may be checked manually by checking that the door is locked during operation.