Kia Optima: Air Conditioning System / Evaporator Temperature Sensor
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. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC). Electrical resistivity of NTC will increase with decreasing temperature and decrease with increasing temperature.
Repair procedures
| Inspection |
| 1. |
Turn the ignition switch OFF. |
| 2. |
Disconnect the evaporator temperature sensor connector. |
| 3. |
Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor.
Specification
|
| Replacement |
| 1. |
Disconnect the negative (-) battery terminal. |
| 2. |
Remove the evaporator core assembly. (Refer to Heater - "Evaporator Core") |
| 3. |
Remove the evaporator temperature sensor (A) from the evaporator core.
|
| 4. |
To install, reverse the removal procedure. |
A/C Pressure Transducer
Description and operation
Description
The A/C Pressure Transducer (APT) converts the pressure value of high pressure
line into voltage value after measuring it. By converted voltage va ...
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 ...
Other information:
Kia Optima DL3 2019-2024 Owner's Manual: All season tires, Summer tires, Snow tires
All season tires Kia specifies all season tires on some models to provide good performance for use all year round, including snowy and icy road conditions. All season tires are identified by ALL SEASON and/or M+S (Mud and Snow) on the tire sidewall. Snow tires have better snow traction than a ...
Kia Optima DL3 2019-2024 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 ...
