Troubleshooting |
Problem Symptoms Table |
Symptom |
Suspected Area |
No blower operation |
1. Blower fuse |
2. Blower relay |
|
3. Blower motor |
|
4. Power mosfet |
|
5. Blower speed control switch |
|
6. 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 |
|
Vented air not cold |
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 |
Hyundai Kona (OS) 2018-2023 Service Manual: Cooling Fan Repair procedures
Removal and Installation
Cooling Fan Assembly
1.
Disconnect the battery negative terminal from the battery.
2.
Remove the air duct and air cleaner assembly.
(Refer to Intake and Exhaust System - "Air Cleaner")
...
Hyundai Kona (OS) 2018-2023 Service Manual: Refrigerant Line Repair procedures
Replacement
1.
If the compressor is marginally operable, run the engine at idle
speed, and let the air conditioning work for a few minutes, then
shut the engine off.
2.
Disconnect the negative (-) battery ter ...