| 摘要 |
A washing and/or drying appliance, comprising a heating circuit (140) for heating a washing liquid and/or a drying air flow, connected to voltage distribution lines (105a,105b) distributing power inside the appliance and comprising at least one heating resistor (205) in series to switch means (210a, 210b) controlled by an appliance control unit (125) for selectively energizing the heating resistor when required. The switch means of the heating circuit comprise a first and a second switches (210a, 210b) in series to the heating resistor, the heating resistor being interposed between the first and second switches. A monitoring circuit arrangement is provided, said monitoring circuit arrangement comprising a first resistor (R1) in shunt to the heating resistor and having a resistance substantially higher than that of the heating resistor, and a pull-up network connected between a first terminal (215b;215a) of the heating resistor and one of the voltage distribution lines, the control unit being configured for receiving a voltage corresponding to an electric potential at a second terminal (215a;215b) of the heating resistor. |
