Method for operating clothes treating apparatus

A method for operating a clothes treating apparatus having a dry function for drying the clothes by supplying hot air into the interior of a tub, the method comprising:

• a preliminary dry step of forwardly and reversely rotating the tub during a certain period of time before supplying the hot air to the interior of the tub;
• supplying the hot air into the interior of the tub while alternately rotating the tub forwardly and reversely;
• detecting the moisture content of the clothes put into the interior of the tub;
• lowering the temperature of hot air and supplying the same when the detected moisture content is less than a first predetermined level;
• and
• supplying the hot air having a lower temperature to complete drying,
• wherein air which has not been heated is supplied to the interior of the tub in the preliminary dry step.

A method for operating a clothes treating apparatus having a dry function for drying the clothes by supplying hot air into the interior of a tub, the method comprising:

• a temperature increasing step of increasing a temperature of a dry target;
• a maintaining step of maintaining the temperature of the dry target at a certain level;
• and
• a cooling step of lowering the temperature of the dry target,
• wherein, in the temperature increasing step and the maintaining step, a rotation speed of the tub in one rotation direction is periodically and alternately changed between a first speed and a second speed per a predetermined period, and during the predetermined period the first speed and the second speed are respectively maintained.