Kia Niro: Air Conditioning System / Evaporator Core Repair procedures

Kia Niro 2017 (DE HEV) 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 assembly. (Refer to Heater - "Heater Unit")

3.	Remove the heater unit lower case (A) after loosening the mounting screws.

4.	Hold the end of evaporator temperature sensor (A) and turn it by 90° in counterclockwise direction, and then pull out the sensor.

5.	Remove the evaporator core (A) from the heater unit.

Install in the reverse order of removal.

•	When installing a new heater core, add refrigerant oil (POE 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 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.

•	Install the hose clamps securely without interchanging the inlet and outlet heater hoses.

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Description The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessiv ...

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