Kia Optima Manuals

Kia Forte: Troubleshooting - Heating,Ventilation, Air Conditioning - Kia Forte TD 2014-2018 Service ManualKia Forte: Troubleshooting

Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Heating,Ventilation, Air Conditioning / Troubleshooting

Problem Symptoms Table
Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor.
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.
After correcting the malfunction, check the complete system to ensure that performance is satisfactory.
Symptom
 Suspect Area
No blower operation
 1. Blower fuse
2. Blower relay
3. Blower motor
4. Blower resistor, Power mosfet or PWM blower module
5. Blower speed control switch or knob
6. Wire harness
No air temperature control
 1. Engine coolant capacity
2. Heater control assembly
3. Temperature control actuator or cable
No compressor operation
 1. Refrigerant capacity
2. A/C Fuse
3. Compressor
4. A/C pressure transducer
5. A/C switch
6. Evaporator temperature sensor
7. Wire harness
8. High CAN
No cool comes out
 1. Refrigerant capacity
2. Refrigerant pressure
3. Drive belt
4. Compressor
5. A/C pressure transducer
6. Evaporator temperature sensor
7. A/C switch
8. Heater control assembly
9. Wire harness
10. High CAN
11. Temperature control actuator or cable
Insufficient cooling
 1. Refrigerant capacity
2. Drive belt
3. Compressor
4. Condenser
5. Expansion valve
6. Evaporator
7. Refrigerant lines
8. A/C pressure transducer
9. Heater control assembly
10. High CAN
No engine idle-up when A/C switch ON
 1. Engine ECM
2. Wire harness
No air inlet control
 1. Heater control assembly
2. Intake actuator
No mode control
 1. Heater control assembly
2. Mode control actuator or cable
No cooling fan operation
 1. Cooling fan fuse
2. Fan motor
3. Blower resistor, Power mosfet or PWM blower module
4. Engine ECM
5. Wire harness

Special Service Tools
Tool (Number and name) Illustration Use 09977-3R000 Disc & hub assembly bolt remover Removal and installation of disc & hub assembly ...

Air Conditioning System
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See also:

Overdrive Clutch Control Solenoid Valve(OD/C_VFS) Inspection
1. Turn ignition switch OFF. 2. Disconnect the Solenoid valve connector. 3. Measure resistance between sensor ...

Rear Bumper Beam Assembly Component Location
(4Door, 2Door) 1. Rear bumper beam assembly (5Door) 1. Rear bumper beam assembly ...

System Block Diagram
...

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