Hyundai Palisade: Heater / Evaporator Core

Hyundai Palisade (LX2) 2020-2025 Service Manual / Heating,Ventilation And Air Conditioning / Heater / 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 core. (Refer to Heater - "Heater Core")

4.	Loosen the mounting screws and remove the evaporator core cover (A).

5.	Separate the evaporator temperature sensor (A) from the evaporator core.

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

Install in the reverse order of removal.

•	Be careful that the inlet and outlet pipe are not bent during heater core and evaporator core removal/installation.

•	If you're installing a new evaporator 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.

•	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.

•	Refill the cooling system with engine coolant.

Heater Core

Repair procedures Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower assembly...

PTC Heater (Diesel only)

Description and operation Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core...

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