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.
Standard:
Symptom:
No blower operation
Suspected Area:
- Blower fuse
- Blower motor
- PWM blower module
- Blower speed control switch
- Wire harness
Symptom:
No air temperature control
Suspected Area:
- Engine coolant level
- Heater control assembly
Symptom:
No compressor operation
Suspected Area:
- Refrigerant level
- A/C fuse
- Compressor
- A/C pressure transducer
- A/C switch
- Evaporator temperature sensor
- Wire harness
- Cooling fan
- HEV system
Symptom:
Ventilated air not cold
Suspected Area:
- Refrigerant level
- Refrigerant pressure
- Compressor
- A/C pressure transducer
- Evaporator temperature sensor
- A/C switch
- Heater control assembly
- Wire harness
Symptom:
Insufficient cooling
Suspected Area:
- Refrigerant level
- Compressor
- Condenser
- Expansion valve
- Evaporator
- Refrigerant lines
- A/C pressure transducer
- Heater control assembly
Symptom:
No air inlet control
Suspected Area:
- Heater control assembly
Symptom:
No mode control
Suspected Area:
- Heater control assembly
- Mode actuator
Symptom:
No cooling fan operation
Suspected Area:
- Cooling fan fuse
- Fan motor
- Engine ECM
- Wire harness
Specification
Air Conditioner
Blower Unit
Heater and Evaporator Unit
Tightening Torques
READ NEXT:
Air Conditioning System / General Safety Information and Caution
Instructions (R- 134a)
When Handling Refrigerant
R-134a liquid refrigerant is highly volatile. A drop on the skin of your
hand could result in localized
frostbite. When handling the refrigerant, be sure to wear gloves.
It is standard prac
Air Conditioning System / Repair Procedures
Checking Refrigerant Specifications
Check refrigerant specifications label inside engine room.
Examples
R-134a
R-1234yf
If refrigerant specifications label is not visible, check the
refrigerant service port diameter.
High
pressu
SEE MORE:
Blind-Spot Collision-Avoidance Assist settings
Blind-spot safety
A: Driver assistance
Driving safety
Blind-spot safety
With the vehicle on, touch Settings ?
Driver Assistance ? Driving Safety on
the instrument cluster or Settings ?
Vehicle ? Driver assistance ? Blindspot
saf
Vehicle Identification
Vehicle Identification Number (VIN)
Kia NIRO Hybrid
Type A - For hybrid vehicle
Type A - For plug-in hybrid vehicle
Type B
Kia Niro EV
Type A
Type B
The Vehicle Identification Number (VIN)
is the number used in registering your
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