Abstract: A vented dryer having a drum to dry damp laundry by warm process air; a first process air duct upstream of the drum; a heater to heat the process air in the first process air duct; a supply air duct leading into the first process air duct; an exhaust air duct; a second process air duct downstream of the drum and transitioning into the exhaust air duct; a blower; a first temperature sensor in the first process air duct; and a heat-buildup generator to generate a heat buildup at the first temperature sensor if a counter-flowing air current occurs.

Abstract: A vented dryer having a drum to dry damp laundry by warm process air; a first process air duct upstream of the drum; a heater to heat the process air in the first process air duct; a supply air duct leading into the first process air duct; an exhaust air duct; a second process air duct downstream of the drum and transitioning into the exhaust air duct; a blower; a first temperature sensor in the first process air duct; and a heat-buildup generator to generate a heat buildup at the first temperature sensor if a counter-flowing air current occurs.

Abstract: A method for monitoring the proper functioning of a temperature-dependent resistor, particularly a NTC resistor, for measuring the temperature of a medium heated by a heat source. Said medium is preferably the air flow in a clothes dryer for drying clothes. In order to increase the safety of a device, in particular a clothes dryer, where the temperature-dependent resistor is used in combination with a heat source, it is checked, once the heat source is switched on, whether the temperature measured by the resistor after a first predetermined period of time following the switching on of the heat source falls below a predetermined temperature threshold value. If this is the case, monitoring of a resistor-temperature curve characteristic of the temperature-dependent resistor is carried out.

Abstract: A method for monitoring the proper functioning of a temperature-dependent resistor, particularly a NTC resistor, for measuring the temperature of a medium heated by a heat source. Said medium is preferably the air flow in a clothes dryer for drying clothes. In order to increase the safety of a device, in particular a clothes dryer, where the temperature-dependent resistor is used in combination with a heat source, it is checked, once the heat source is switched on, whether the temperature measured by the resistor after a first predetermined period of time following the switching on of the heat source falls below a predetermined temperature threshold value. If this is the case, monitoring of a resistor-temperature curve characteristic of the temperature-dependent resistor is carried out.