| 摘要 |
A laundry or tableware treating machine including a treating chamber where the items can be introduced to be treated with a treating medium, a control unit (UC1), a heat pump system including a compressor (C), a first heat exchanger for heating a refrigerant, a second heat exchanger for cooling the refrigerant and heating the treating medium and expansion means, at least an active switching device (RL), controllable by the control unit (UC1), for selectively switching ON/OFF the compressor (C), wherein the machine comprises at least a passive switching device, not controllable by control unit (UC1), and including a thermo protector circuit (P) adapted to cut the power supply to the compressor (C) when predetermined temperature or voltage load thresholds are exceeded, monitoring means to detect the opening of the thermo protector circuit (P) to cut the power supply to the compressor (C), wherein the monitoring means includes at least one of the following: a system for monitoring the temperature of the refrigerant; a sensing circuit to detect a change of potential and/or current at an assembly comprising the compressor (C) and the thermo protector circuit (P). |
