FIELD: personal use articles.
SUBSTANCE: household appliance displays technical information as a predetermined audio signal, and the audio signal is transmitted to a remote service center via the communication network, so that the state of the household appliance can easily be checked at the service center. The data associated with each operation of the household appliance are stored as the technical information according to the operating mode of the household appliance. The technical information is also stored when the work is completed suddenly, and then is displayed as a sound signal, so that the state of the household appliance can be properly checked and an error that occurs in a household appliance can be correctly diagnosed.
EFFECT: data storage on error, that is required for diagnostics of the household appliance while minimising the amount of optional data storage, thereby increasing the efficiency of use of the limited resources of the household appliance and enabling more accurate diagnostics of the household appliance.
20 cl, 11 dwg
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