Clothes dryer and control method thereof

A method of controlling a clothes dryer, comprising:

• rotating a fan of an air blowing device at a first number of rotations in a given time and comparing a water level detected by a water level detecting part and a preset threshold value;
• operating a pump in response to the detected water level being greater than or equal to the preset threshold value;
• determining whether a preset time elapses after the pump is operated;
• detecting the water level by the water level detecting part in response to the preset time elapsing, and comparing the detected water level and the preset threshold value;
• and
• rotating the fan at a second number of rotations in the given time which is lower than the first number of rotations in the given time in response to the detected water level being greater than or equal to the preset threshold value.

A method of controlling a clothes dryer, comprising:

• rotating a fan of an air blowing device at a first number of rotations in a given time;
• determining whether a preset time elapses;
• rotating the fan at a second number of rotations in the given time which is lower than the first number of rotations in the given time, in response to the preset time elapsing;
• comparing a water level detected by a water level detecting part and a preset threshold value;
• and
• in response to the water level being greater than or equal to the preset threshold value, maintaining the fan to rotate at the second number of rotations in the given time, or controlling the fan to rotate at a third number of rotations in the given time which is lower than the second number of rotations in the given time, and controlling a pump to operate.