Kia Optima: Troubleshooting - General Information - Heating,Ventilation, Air Conditioning - Kia Optima TF 2011-2022 Service ManualKia Optima: 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.


Suspect Area
No blower operation
1. Blower fuse
2. Blower motor
3. Power mosfet
4. Blower speed control switch
5. Wire harness
No air temperature control
1. Engine coolant capacity
2. Heater control assembly
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
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
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
No engine idle-up when A/C switch ON
1. Engine ECM
2. Wire harness
No air inlet control
1. Heater control assembly
No mode control
1. Heater control assembly
2. Mode actuator
No cooling fan operation
1. Cooling fan fuse
2. Fan motor
3. Engine ECM
4. Wire harness

Specification Air Conditioner Item Specification Compressor Type 6VSX16 (External variable displacement) Oil type & ...

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

See also:

Schematic Diagrams
System Block Diagram ...

Front Door Components and Components Location
Components 1. Front door trim2. Front door quadrant inner cover3. Front door belt inside weatherstrip4. Front door module5. Front door panel6. Front door side impact pad7. Front door belt outer w ...

Electric Parking Brake (EPB) Repair procedures
Removal EPB Unit 1. Turn ignition OFF and disconnect the negative (-) battery cable. 2. Disconnect the EPB control unit connecter (A). 3. Remove the EPB control unit mounting nuts (B) ...

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