NTC (negative temperature coefficient). Resistance or capacitance decreases when temperature increases. The Temperature Sensor with Hi Limit Thermistor is an OEM part for Bosch dishwashers. This sensor monitors internal temperatures, providing feedback to the control module during each cycle. Causes of failure can be related to mineral buildup over time interfering with sensing or physical damage to wiring or connectors. Symptoms of a bad temperature sensor include: Abnormal or inconsistent wash temperatures Error codes related to temperature issues Reduced cleaning performance from improper heating This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.Part Number 00165281 (AP2802365) replaces 165281, 935369, AH3439111, EA3439111, PS3439111, PS8697055.