How often should a car's evaporator box be cleaned?
2 Answers
Car evaporator box should be cleaned once a year. The following is relevant information about the car evaporator box: 1. Definition: The evaporator box is a radiator device for the car engine and air conditioning system, located behind the glove compartment on the passenger side, and is integrated with the heater core as one assembly. 2. Classification: Horizontal evaporator; Vertical tube evaporator; Spiral tube evaporator; Air-cooling evaporator; Liquid coolant evaporator. 3. Function: It transforms the refrigerant from liquid to gaseous state, absorbing a large amount of surrounding heat. The low-temperature, low-pressure refrigerant vapor then re-enters the compressor. This repeated process achieves the cooling purpose, providing passengers with a comfortable riding environment, reducing driver fatigue, and improving driving safety.
I generally recommend cleaning the evaporator box every 1 to 2 years, depending on your daily usage habits and living environment. Personally, I drive frequently in the humid southern regions where the AC is used often, causing the evaporator to accumulate mold and dust easily. Not only does this result in musty air blowing out, but it can also trigger allergies and sneezing. That's why I make it a habit to visit a reputable repair shop for a thorough cleaning with disinfectant before each summer. If you frequently drive long distances in dusty areas or smoke inside the car, you might need to clean it more often. After cleaning, you'll notice faster cooling and fresher air, which helps prevent respiratory issues and extends the AC's lifespan. Don't ignore early signs of odors—addressing them promptly saves money and protects your health.
