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Kia Sedona: Evaporator Core Repair procedures - Heater - Heating,Ventilation And Air Conditioning - Kia Sedona YP Service ManualKia Sedona: Evaporator Core Repair procedures

Third generation YP (2014-2025) / Kia Sedona YP 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 unit lower case (A) after loosening the mounting screws.

4.
Pull out the evaporator core (A) from the heater unit.

   
Be careful not to bend the inlet and oulet pipes when removing or installing the heater core and evaporator core.
5.
Install in the reverse order of removal.
   
•
When 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 to avoid leakage.
•
Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.
•
Do not spill refrigerant oil on the vehicle as it may damage the paint. If refrigerant oil comes in contact with 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.
•
Refill the cooling system with engine coolant.
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