Hyundai Ioniq (AE): Heater / Heater Core. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair 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.

6.
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.

    Replacement    When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.

    DescriptionThe PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core.The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective hybrid engine.

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