Hyundai Ioniq: Heater / PTC Heater. Description and operation

Hyundai Ioniq (AE) 2017-2025 Service Manual / Heating, Ventilation and Air Conditioning / Heater / PTC Heater. Description and operation

Description

The 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. The electric heater heats up the interior by directly heating the air that passes through the heater. The name itself implies that the element has a proportional resistance change sensitive to temperature.

Heater Core. Repair procedures

Replacement1.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)...

PTC Heater. Repair procedures

InspectionOperating Logic Test (Manual only)Inspect the PTC operation by confirmation logic as follows.1.Entering(1)Set the Floor mode and maximum heating position...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: Intake Air Temperature Sensor (IATS). Repair procedures

Inspection1.Turn the ignition switch OFF.2.Disconnect the IATS connector.3.Measure resistance between the IATS terminals 3 and 4.4.Check that the resistance is within the specification. Specification : Refer to "Specification"Removal 1.Turn ignition switch OFF and disconnect the negative (-) battery cable...

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: How to Connect Normal Charger

1. Depress the brake pedal and apply the parking brake. 2. Turn OFF all switches, shift to P (Park), and turn OFF the vehicle. 3. Press center edge of the charging door to open the charging door. Information The charging door opens only when the door is unlocked...