Method For Controlling The Operation Of A Washing Machine, And System For Controlling Freezes For A Washing Machine

A method of controlling the operation of a washing machine, the method comprising:

• a step (a) that performs draining, when the water level in an outer tub is a set-water level or more, before supplying wash water;
• a step (b) that compares the internal temperature of the washing machine with a reference temperature, draining takes a reference time or more in the step (a);
• and
• a step (c) that outputs a first error message, when the internal temperature of the washing machine is lower than the reference temperature in the step (b).

A method of controlling the operation of a washing machine, the method comprising:

• a step (a) that performs draining, when the water level in an outer tub is higher than a first set-water level that is set to determine whether an overflow has occurred, before supplying wash water into the outer tub;
• a step (b) that performs draining, when the water level in the outer tub is higher than a second set-water level set to be lower than the first set-water level, after the step (a);
• a step (c) that compares the internal temperature of the washing machine with a predetermined reference temperature, when the time taken to discharge the water to a predetermined level in the step (b) is larger than a predetermined drain-set time;
• and a step (d) that outputs a first error message, when the internal temperature of the washing machine is lower than the predetermined reference temperature in the step (c).

A method of controlling the operation of a washing machine, the method comprising:

• a step (a) that senses temperature before water is supplied into an outer tub;
• a step (b) that supplies water into the outer tub;
• a step (c) that senses the water level in the outer tub;
• and
• a step (d) that outputs a fifth error message, when the water level in the outer tub does not reach a first set-water level within a first set-time.