Why Your Truck's AC Isn't Cooling and How to Fix It
Why Your Truck's AC Isn't Cooling and How to Fix It

Why Your Truck’s AC Isn’t Cooling and How to Fix It

08/02/2025
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“It’s scorching hot!” Mr. Ba exclaimed, drenched in sweat as he drove his cargo from Gia Lam to Ha Dong. Wiping his brow, he complained, “This new truck’s AC is acting up, it’s hot enough to melt butter!” Indeed, a malfunctioning AC is a nightmare for truck drivers, especially during sweltering summer days. So, what causes this problem and how can it be fixed?

Broken car AC unitBroken car AC unit

1. Why Is My Truck’s AC Not Blowing Cold Air?

There are numerous reasons why your truck’s AC might malfunction, ranging from simple to complex issues:

1.1. Low Refrigerant

This is the most common culprit. Refrigerant absorbs heat, cooling the air. If the refrigerant is low, the AC will be less effective or may not cool at all.

1.2. Dirty Cabin Air Filter

A dirty cabin air filter restricts airflow, preventing cool air from circulating properly throughout the vehicle. According to Mr. Nguyen Van A, a technician at Hyundai Truong Chinh truck dealership, the cabin air filter should be cleaned regularly or replaced every 10,000 – 15,000 km.

1.3. Blower Motor Issues

The blower motor circulates cool air throughout the cabin. If the blower motor is faulty, the cool air won’t be distributed evenly, resulting in inconsistent temperatures.

1.4. Faulty Condenser

The condenser releases heat from the refrigerant. If the condenser is dirty or damaged, its efficiency decreases, affecting the AC’s cooling capacity.

1.5. Refrigerant Leaks

The AC system can leak refrigerant from hoses, seals, or other components. When refrigerant leaks, the system won’t have enough to function properly.

2. Truck AC Repair Service Price List

Service Estimated Price (VNĐ)
Refrigerant Recharge 300,000 – 500,000
Cabin Air Filter Cleaning/Replacement 50,000 – 150,000
Blower Motor Repair 200,000 – 500,000
Condenser Cleaning/Replacement 500,000 – 1,500,000
Refrigerant Leak Repair 300,000 – 1,000,000

Note: Prices may vary depending on the vehicle model and repair shop.

3. Tips for Using Your Truck’s AC

  • Regularly maintain your truck’s AC system for optimal performance.
  • Avoid setting the AC temperature too low compared to the outside temperature.
  • Minimize frequently opening and closing doors while the AC is running.

4. Frequently Asked Questions

4.1. Why Does My Truck’s AC Blow Cold Air Intermittently?

Possible causes include low refrigerant, a faulty expansion valve, or a malfunctioning temperature sensor.

4.2. What Type of Refrigerant Should I Use for My Truck?

The correct refrigerant type depends on the vehicle’s make and model. Consult a technician for accurate recommendations.

Technician inspecting a car's AC systemTechnician inspecting a car's AC system

5. Buy Quality Trucks at Great Prices at Xe Tai Ha Noi

If you’re looking for a truck with a reliable AC system, visit Xe Tai Ha Noi. We offer a wide range of trucks, from light to heavy-duty, to meet all your transportation needs. With our team of professional consultants, we are committed to providing you with the best options. Xe Tai Ha Noi has locations in districts such as Cau Giay, Hai Ba Trung, Hoang Mai, Long Bien,…

6. Related Products

In addition to trucks, Xe Tai Ha Noi also offers services such as:

  • Mitsubishi car AC filters
  • Tire sales

7. Conclusion

We hope this article has provided valuable insights into why your truck’s AC might not be cooling and how to address the issue. Visit Xe Tai Ha Noi for the best service experience!

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