Hyundai Ioniq: Heater / Heater Core. Repair procedures

Hyundai Ioniq (AE) 2017-2025 Service Manual / Heating, Ventilation and Air Conditioning / Heater / Heater 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 and remove the driver's temperature control actuator (A).

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

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

To install, reverse the removal procedure.

•	If you're installing a new condenser, 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-1234yf to avoid leakage.

•	Be careful not to damage the radiator and condenser fins when installing the condenser.

•	Charge the system, and test its performance.

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