Clothes treating apparatus

A clothes treating apparatus comprising:

• a housing;
• a tub inside the housing;
• a drum configured to be rotated inside the tub;
• a spin-drying shaft connected to the drum;
• a motor assembly including a rotor configured to be rotated;
• a coupler;
• a first element;
• and
• a second element inside the coupler,
• wherein
• the coupler is positionable in a first position in which the coupler is coupled to the spin-drying shaft and the rotor,
• the coupler is positionable in a second position in which the coupler is coupled to the spin-drying shaft and disengaged from the rotor,
• with the coupler being positioned in the second position, the first element and the second element are configured to interact to move the second element away from the first element and thereby move the coupler from the second position to the first position,
• the first element includes a coil configured to form a magnetic field in response to application of a current to the coil, and
• the second element is movable to be close to or away from the first element by the magnetic field formed by the coil.