Kia 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:
Underdrive Brake Control Solenoid Valve(UD/B_VFS) Inspection
1.
Turn ignition switch OFF.
2.
Disconnect the Solenoid valve connector.
3.
Measure resistance between sensor ...
Alternator Disassembly
1.
Remove the rear cover (A) after removing nuts (B).
2.
Remove the mounting bolts (A) and the regulator assembly (B).
...
Instrument Cluster Installation
1.
Connect the cluster connector.
2.
Install the cluster assembly.
3.
Install the cluster facia panel.
...
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