Program-controlled washing machine or dishwasher - registers speed of temperature rise in washing water to provide for heater control

摘要

A programme-controlled washing machine or dishwasher incorporates a heating device for the washing water and a thermostat connecting the heating device in accordance with the washing temperature. The speed of the temperature rise of the washing water is registered or measured during a specific period of time. The measuring result is used as a basis for a control value for the controlling and switching off of the heating device via the thermostat. ADVANTAGE - The preselected end or ideal temperature of the washing water is maintained accurately and not exceeded.