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: General safety information and caution

Safety PrecautionPrecautions To Take Before Servicing High Voltage System • Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric shock and electric leakage...

Hyundai Ioniq (AE) 2017-2025 Service Manual: Receiver-Drier. Repair procedures

Replacement1.Remove the condenser.2.Remove the cap (A) on the bottom of the condenser with a L wrench. Tightening torque : 9.81 - 14.71 N.m (1.0 - 1.5 kgf.m, 7.2 - 10.8 lb-ft) 3.Remove the receiver-drier (A) from condenser using a long nose plier...