Abstract: The present invention relates to a dryer and a controlling method of a dryer, which can sense whether there is a malfunction or can precisely sense a drying rate of laundry. A dryer comprising a drum that laundry is stored in and a heater that supplies hot air to the drum, the dryer includes a sensing circuit that outputs a pulse signal based on contact with the laundry; and a micom that controls the dryer, wherein the micom determines a drying rate of the laundry or whether there is a malfunction in the dryer based on the pulse signal outputted from the sensing circuit.

Abstract: Disclosed is an apparatus for detecting a belt-cutoff of a dryer. The apparatus comprises a drying drum accommodating a laundry therein; a motor applying a rotational force to the dry drum; a belt wound around the drying drum and a rotating shaft of the motor; and a belt cut detecting unit provided adjacent to the motor in order to sense the belt-cutoff, wherein the belt cut detecting unit is pressed as the motor is rotated by a turning moment when the belt is cut off.

Abstract: A heating system and a method of controlling the heating system are provided. When a heating unit and a switch are turned on and off repeatedly by the predetermined number of times or more, only some of heaters of the heating unit are turned on, thereby increasing service life of the heating unit and the switch.

Abstract: A method for controlling a washing machine is provided. The method includes setting a washing pattern in a present operation of the washing machine in consideration of a hardness of water calculated in a previous operation of the washing machine, operating the washing machine based on the set washing pattern, and calculating and storing a hardness of the water in the present operation of the washing machine to set a next washing pattern in the next operation of the washing machine, thereby having the optimum washing or rinsing capacity of the washing machine in consideration of different characteristics of water by regional groups.

Abstract: A washing machine and a control method thereof are provided. The method includes calculating a quantity of a detergent in a washing operation, setting a washing pattern based on the calculated quantity of the detergent, and performing a rinsing operation according to the set washing pattern, thereby improving rinsing capacity of the washing machine.

Abstract: The present disclosure suggests a dryer and method of controlling the same. Disclosed is a dryer, comprising: a heater for heating the air which is to be directed to a dry drum; a motor for rotating the dry drum; a power supply unit for supplying electric current to the heater and the motor; a heater relay for selectively applying electric current to the heater; a motor relay for selectively applying electric current to the motor; a safety relay for selectively applying electric current from the power supply unit to the respective relay; and a control unit for cutting off electric current by turning off the safety relay when an abnormal stop occurs, after the control unit determines whether the abnormal stop occurs during a drying operation.

Abstract: The present invention relates to a dryer and a controlling method of a dryer, which can sense whether there is a malfunction or can precisely sense a drying rate of laundry. A dryer comprising a drum that laundry is stored in and a heater that supplies hot air to the drum, the dryer includes a sensing circuit that outputs a pulse signal based on contact with the laundry; and a micom that controls the dryer, wherein the micom determines a drying rate of the laundry or whether there is a malfunction in the dryer based on the pulse signal outputted from the sensing circuit.

Abstract: A heating system and a method of controlling the heating system are provided. When a heating unit and a switch are turned on and off repeatedly by the predetermined number of times or more, only some of heaters of the heating unit are turned on, thereby increasing service life of the heating unit and the switch.

Abstract: Disclosed is an apparatus for detecting a belt-cutoff of a dryer. The apparatus comprises a drying drum accommodating a laundry therein; a motor applying a rotational force to the dry drum; a belt wound around the drying drum and a rotating shaft of the motor; and a belt cut detecting unit provided adjacent to the motor in order to sense the belt-cutoff, wherein the belt cut detecting unit is pressed as the motor is rotated by a turning moment when the belt is cut off.

Abstract: Disclosed is a control method of a washing machine comprising the steps of (a) setting a washing pattern in the present operation of the washing machine in consideration of hardness of the water calculated in the previous operation of the washing machine, (b) operating the washing machine based on the set washing pattern, and (c) calculating and storing hardness of the water in the present operation of the washing machine to set a next washing pattern in the next operation of the washing machine, thereby having the optimum washing or rinsing capacity of the washing machine in consideration of different characteristics of water by regional groups.