Kia Forte: PTC Heater Description - Heater - Heating,Ventilation, Air Conditioning - Kia Forte TD 2014-2018 Service ManualKia Forte: PTC Heater Description

Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Heating,Ventilation, Air Conditioning / Heater / PTC Heater 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 gasoline 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.
Operation Principle
Heater control outputs a PTC ON signal and operates PTC relay.
Operating Condition
PTC heater operates according to the following conditions :
Battery voltage : 13.0V or above
Engine : 900 rpm or above
Ambient temperature and coolant temperature
Ambient
Temperature
Coolant
Temperature
PTC
Operation
Below -20°C
(-4°F)
Below 75°C (167°F)
ON
10°C (50°F)
Below 65°C (149°F)
ON
7°C (44.6°F) or above
-
OFF
-
80°C (176°F) or above
OFF

Auto Defogging Actuator Replacement
1. Disconnect the negative (-) battery terminal. 2. Remove the glove box housing. (Refer to Body -"Glove Box Housing") ...

PTC Heater Inspection
Operating Logic Test (Manual only) Inspect the PTC operation with the confirmation logic below : 1. Entering (1) Set the Floor mode ...

See also:

Trunk Lid Assembly Component Location
(4Door, 2Door) 1. Trunk lid assembly ...

Front Cross Member
* These dimensions indicated in this figure are actual-measurement dimensions. [ Unit : mm (inch) ] ...

IMS Power Seat Control Circuit diagram
...

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