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: Rear Door Belt Outside Weatherstrip. Repair procedures

Replacement1.Pull down the rear door window glass to the lowest level by pressing the power window glass switch.2.After loosening the mounting screws, remove the rear door belt outside weatherstrip (A).3.To install, reverse the removal procedure. • Replace any damaged clips...

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Immobilizer Indicator Light

This indicator light illuminates for up to 30 seconds: • When the vehicle detects the smart key in the vehicle with the Engine Start/Stop button in the ACC or ON position. - At this time, you can start the engine. - The indicator light goes off after starting the engine...