Evaporator Temperature Sensor / Switch: Description and Operation

GF83.57-P-2126TX Evaporator Temperature Sensor Component Description

Component Identification:

Location
The evaporator temperature sensor is located at the left on the A/C housing.

Task
The evaporator temperature sensor records the temperature of the air flowing past the evaporator. The reading is read in directly by the AAC [KLA] control and operating unit (N22) (without code (581) comfort automatic air conditioning) or from the comfort AAC control and operating unit (N22/7) (with code (581) comfort automatic air conditioning).

Function
The evaporator temperature sensor is a temperature-dependent resistor. The values transmitted to the AAC [KLA] control and operating unit or the comfort AAC control and operating unit enable the refrigerant compressor (A9) to be specifically regulated to prevent the evaporator from freezing.