2007 KIA CARNIVAL heater

2007 > 2.7L V6 GASOLINE >
TROUBLESHOOTING
SYMPTOM REMEDY
Fuel smell Check fuel system on vehicle.
Check the fuel supply line in the fuel fired heater for fuel leaking and
fuel hose for twisting or clogging.
If none of above is affected, there is likelihood of fuel leaking from the
heater inner. Repair the heater after removing it.
Heater does not work at full load Repair the heater after removing it.
White smoke occurs continuously during
operation Repair the heater after removing it.
Shortage of coolant
Smoke occurs during operation
Excessive exhaust gas smell Check coolant hose for leaking, twisting and hose clamp for looseness.
If above items are normal, leaks from the heater inner may cause these
symptoms.
Repair the heater after removing it.
Loss of fuel Check fuel system on vehicle.
Check the fuel supply line in the fuel fired heater for fuel leaking and
fuel hose for twisting or clogging.
If above items are normal, there is likelihood of fuel leaking from the
heater inner.
Repair the heater after removing it.

2007 > 2.7L V6 GASOLINE >
SPECIFICATIONS
ITEM OPERATION STATESPECIFICATION
Fuel fired heater body Heater discharge
Full load
5.0kw
Half load 2.5kw
Full load Diesel
Fuel consumption Full load
0.63 l/h
Half load 0.32 l/h
Rated voltage y12.0V
Operation voltage range y9.5V~15.0V
Power consumption Full load
37w(Normal)
Half load 13w(Normal)
Permissible ambient temperature At operation
- 40°C~80°C
At storage - 40°C~120°C
Permissible operation pressure y
0.4bar ~ 2.5bar
Minimum coolant flow volume y
250 l/h
Permissible CO₂ value y 8~13 vol %
ITEM SPECIFICATION
Dosing pump Rated voltage
12.0V
Operation voltage range 9.0V ~ 15.0V
Maximum power consumption 4w(Normal)
ITEM SPECIFICATION
Ambient switch Rated voltage
12.0V
Temperature of ON/OFF ON : 2°C(Tolerance : + 3°C, - 2°C)
OFF : 8°C(Tolerance : + 2°C, - 3°C)

Positive Temperature Coefficient Heater

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
PTC (Positive Temperature Coefficient) heater (A) is an electric heater using a PTC element as an auxiliary heating
device that supplements deficiency of interior heat source in highly effective diesel engine (U engine).
An electric heater heats up the interior by directly heating the air that passes through the heater.
PTC = positive Temperature Coefficient
The name itself implies that the element has a proportional resistance change sensitive to temperature. PTC heater is
installed at the exit or the backside of heater core.
OPERATION PRINCIPLE
ECM outputs a PTC on signal. Operate PTC from 1st setting to 3rd setting with an interval of 15 seconds.
Heat up the air, which passes through a heater core.
OPERATION CONDITION
Judge the condition by ambient temperature is below 5°C, coolant temperature is below 70°C, and battery voltage is
above 11V and engine RPM is above 700RPM.

Rear Heater

Rear Heater Unit

2007 > 2.7L V6 GASOLINE >
REPLACEMENT
1.Disconnect the negative(- ) battery terminal.
2. Recover the refrigerant with a recover/ recycling/ charging station.
3. When the engine is cool, drain the engine coolant from the radiator.
4. Remove luggage side trim(Refer to BD - ).
5. Loosen the refrigerant line mounting bolts, and then remove the rear refrigerant line(A).
6.Remove the heater hose(A), drain hose(B).
7.Remove the rear heater main connector(A).
8.Loosen the rear heater mounting nuts, and then remove the rear heater unit(A).

9.Remove the heater core mouting cover(A), after loosening the screw.
10. Remove the heater core(A).
11.Installation is the reverse order of removal.