Kia Optima Hybrid: Heating,Ventilation, Air Conditioning / Troubleshooting

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Heating,Ventilation, Air Conditioning / Troubleshooting

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.

Standard:

Symptom

Suspect Area

No blower operation

1)	Blower fuse

2)	Blower motor

3)	PWM Blower Module

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

A/C Fuse

3)	Compressor

4)	A/C pressure transducer

5)	A/C switch

6)	Evaporator temperature sensor

7)	Wire harness

8)	Cooling fan

9)	HEV system

A/C does not blow cold air

1)	Refrigerant capacity

2)	Refrigerant pressure

3)	Compressor

4)	A/C pressure transducer

5)	Evaporator temperature sensor.

6)	A/C switch.

7)	Heater control assembly

8)	Wire harness

Insufficient cooling

1)	Refrigerant capacity

2)	Compressor.

3)	Condenser.

4)	Expansion valve.

5)	Evaporator.

6)	Refrigerant lines

7)	A/C pressure transducer

8)	Heater control assembly

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

Fan motor

3)	Engine ECM

4)	Wire harness

Special Service Tools

Personal Protective Equipment NameIllustrationDescriptionInsulation gloveUsed when inspecting or working on the high voltage components[Insulation performance : 1000V / 300A or above]Insulation shoesUsed ...

Air Conditioning System

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Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Specifications

Specifications DescriptionSpecificationsLimitGeneralTypeIn-line, DOHC?Number of cylinders4?Bore88mm (3.464in.)?Stroke97mm (3.819in.)?Total displacement2359cc (143.90cu.in)?Compression ratio13.0 ± 0.3 : 1?Firing order1-3-4-2?Valve timingIntake valveOpens ATDC 10° ~ BTDC 35°?ClosesABDC 100° ~ 55°?Exhaust ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Fuel Tank Air Filter Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Lift the vehicle. 3. Disconnect the canister close valve connector (A). 4. Disconnect the ventilation hose (B) from the fuel tank air filter and canister close valve. 5. Remove the fuel tank air filter assembly ...