Kia Optima DL3: Air Conditioning System / In-car Sensor
Description and operation
| Description |
The In-car air temperature sensor is built in the heater & A/C control unit.
The sensor contains a thermistor which measures the temperature of the inside. The signal decided by the resistance value which changes in accordance with perceived inside temperature, is delivered to heater control unit and according to this signal the control unit regulates in-car temperature to intended value.
Description and operation Description The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling.
Description and operation Description The photo sensor is located at the center of the defrost nozzles. The photo sensor contains a photovoltaic (sensitive to sunlight) diode.
Other information:
Kia Optima DL3 2019-2025 Service and Repair Manual: Rheostat
Schematic diagrams Connector and Terminal Function Repair procedures Removal 1. Disconnect the negative battery terminal. 2. Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") 3.
Kia Optima DL3 2019-2025 Service and Repair Manual: Evaporator Core
Repair procedures Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower assembly. (Refer to Heater - "Heater Unit") 3. Loosen the mounting screws, lock pin and remove the evaporator core cover (A).
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