Car AC Evaporator Factory

Why is my car blowing warm air on one side and cold on the other?

Jan 16, 2026

On a scorching summer day, driving should be a cool and comfortable experience. However, if the car's air conditioning suddenly malfunctions, blowing warm air on one side and cold on the other, it not only affects the driving experience but also potentially poses safety hazards.Today, we delve into the root cause of this common issue and offer you an effective solution, all while introducing how our high-quality products can assist you effortlessly.

 

I. Root Cause Analysis: Evaporator Leakage as one of the Culprits

The automotive air conditioning system is intricate and precise, with its cooling efficiency influenced by multiple components working in harmony. If you notice uneven airflow, with one side cold and the other hot, the issue likely lies with the evaporator. The evaporator is a crucial heat exchange component in the air conditioning system, responsible for absorbing heat from the cabin to achieve cooling. However, prolonged use or inadequate maintenance can lead to internal corrosion and seal failure in the evaporator, resulting in refrigerant leaks. When refrigerant levels drop, the air conditioning system naturally fails to operate correctly, leading to uneven air temperatures.

 

II. Professional Solution: Replace with a High-Quality Evaporator to Restore Air Conditioning Vitality

When facing evaporator leakage issues, the most direct and effective solution is to replace the evaporator with a new one. But what type of product ensures long-lasting durability and stable performance? This is where HBS, as a professional manufacturer of automotive air conditioning evaporators and condensers, excel.

 

Our Product Advantages:

Top-notch Quality: We employ industry-leading manufacturing processes and rigorous quality control systems to ensure that each evaporator undergoes precise processing and strict testing. By eliminating leakage risks from the source, we provide your car's air conditioning with consistently stable cooling effects.

 

Corrosion Resistance and Durability: To combat the susceptibility of evaporators to corrosion, we meticulously select highly corrosion-resistant materials and utilize advanced surface treatment techniques. This effectively shields against environmental factors such as moisture and salt, significantly extending the product's lifespan, reducing replacement frequency, and saving maintenance costs.

 

Easy Installation, Time and Effort Saving: Understanding the value of time for car owners and repair technicians, our product designs prioritize ease of installation. Taking the evaporator for Toyota FJ Cruiser 2004 as an example, our evaporator perfectly fits this model, with precise dimensions and a well-thought-out interface design, greatly reducing repair time.

 

 Toyota FJ Cruiser 2004

 

III. Choose HBS and Revitalize Your Beloved Car's Air Conditioning

When faced with the nagging issue of uneven cooling in your car's air conditioning, selecting a reliable, high-performance evaporator is crucial. As a manufacturer with more than 30 years of industry experience, HBS not only offer high-quality products but also promise comprehensive after-sales service to ensure that every choice you make is worthwhile. Whether it's the Toyota FJ Cruiser 2004 or another brand/model, we can provide tailor-made solutions to help your car's air conditioning system return to optimal condition, allowing you to enjoy a cool and comfortable driving journey.

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