Kia Forte: Air Conditioning System / Evaporator Core

Kia Forte 2019-2023 (BD) Service Manual / Heating, Ventilation and Air Conditioning / Air Conditioning System / Evaporator Core

Repair procedures

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the heater and blower unit from the crash pad after loosening the mounting nuts. (Refer to Heater - "Heater Unit")

3.	Remove the heater unit seal (A).

4.	Remove the evaporator core cover (A) after loosening the mounting screws.

5.	Pull out the evaporator core (A) from the heater unit.

To install, reverse the removal procedure.

•	If you're installing a new heater core, add refrigerant oil (PAG OIL).

•	Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the right O-rings for R-134a or R-1234yf to avoid leakage.

•	Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.

•	Do not spill the refrigerant oil on the vehicle; it may damage the paint, if the refrigerant oil contacts the paint, wash it off immediately.

•	Apply sealant to the grommets.

•	Make sure that there is no air leakage.

•	Charge the system and test its performance.

•	Do not interchange the inlet and outlet heater hoses and install the hose clamps securely.

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 ...

Photo Sensor

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. The sol ...

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