Error checking device for washing machine and checking method thereof

An error checking device for a washing machine comprising:

• a use signal generating part for generating a use signal of the washing machine to determine a number of times that the washing machine is operated;
• an error signal generating part for generating respective error signals when errors are generated at respective washing steps to determine respective numbers of times that errors are generated at respective washing steps;
• a memory for storing data having the number of times the washing machine is operated and the respective numbers of times that errors are generated at the respective washing steps;
• a command inputting part for inputting a conversion command for converting the use mode of the washing machine into a checking mode, a display command for displaying data to be checked, and a clear command for clearing the data;
• a display part for displaying the data stored in the memory depending on the display command inputted by means of the command inputting part;
• and
• a microprocessor having a function to count a number of times the washing machine is operated and to store the counted number, a function to separately count respective numbers of times that errors are generated at respective washing steps and to store the counted numbers, a function to display the data stored in the memory at the checking mode depending on the display command inputted by means of the command inputting part, and a function to clear the data stored in the memory at the checking mode depending on the clear command.