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: High voltage shut-off procedures

High Voltage Shut-off Procedures • Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries...

Hyundai Ioniq (AE) 2017-2025 Service Manual: Rear Seat Belt Buckle. Repair procedures

Replacement1.Remove the rear seat cushion assembly.(Refer to Rear Seat - "Rear Seat Cushion Assembly")2.Loosen the mounting bolt, remove the rear seat belt buckle (A). [LH] Tightening torque : 39.2 - 53.9 N.m (4.0 - 5.5 kgf...