Kia Niro: Heating, Ventilation and 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 find the cause of the problem. The numbers indicate the priority of the likely causes of the problem. Check each part in order. If necessary, replace the relevant parts.

After correcting the malfunction, check the complete system to ensure that performance is satisfactory.


Suspected 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 level
2. Heater control assembly
No compressor operation
1. Refrigerant level
2. 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
Ventilated air not cold
1. Refrigerant level
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 level
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
2. Fan motor
3. Engine ECM
4. Wire harness

Specification Air Conditioner Item Specification Compressor Type HES27 (Electric Scroll) Communicatio ...

Air Conditioning System

Other information:

Kia Niro (DE HEV) Owners Manual: Head lamp low beam (RHD)
1. Turn the low beam on without driver aboard. 2. The cut-off line should be projected in the cut-off line shown in the picture. 3. When aiming the low beam, vertical aiming should be adjusted after adjusting the horizontal aiming. 4. If head lamp leveling device is equipped, adjust the head la ...

Kia Niro 2017 (DE HEV) Service Manual: Muffler Components and components location
Components 1. Front muffler 2. Exhaust heat recovery system (EHRS) 3. Center muffler 4. Rear muffler 5. Gasket 6. Rubber hanger ...

© 2016-2021