What is the reason for uneven cooling on one side of the 8th generation Accord's air conditioning?
3 Answers
8th generation Accord's air conditioning has uneven cooling on one side due to the following reasons: 1. Refrigerant issue: Sometimes the reason for the car air conditioning not cooling is a problem with the refrigerant in the car's air conditioning system. 2. Filter blockage: Sometimes excessive impurities in the car air conditioning's refrigerant and refrigeration oil can cause the filter screen to clog, reducing cooling efficiency, increasing resistance, and decreasing the flow of refrigerant to the expansion valve, leading to the car air conditioning not cooling. 3. Saturated dryer tank: The car air conditioning's refrigeration system has a dryer tank whose main task is to absorb moisture from the refrigerant and prevent excessive moisture from reducing cooling capacity. When the desiccant in the dryer tank is saturated, moisture can no longer be filtered out. 4. Compressor drive belt too loose: Sometimes the car air conditioning does not cool because the compressor's drive belt is too loose, or it could be due to reduced heat dissipation capacity of the condenser, leading to decreased air conditioning cooling performance.
This eighth-generation Accord has an issue where one side of the air conditioning blows cold while the other doesn't. My driving friends have encountered similar problems, which are usually caused by a stuck blend door flap. The Accord's dual-zone AC design makes the flaps prone to dust accumulation or aging after prolonged use, preventing even cold air distribution to both vents. Another common reason is insufficient or uneven refrigerant, which reduces cooling efficiency in certain evaporator sections, or a faulty temperature sensor that fails to detect accurate readings. For a quick test, set the temperature to the lowest setting and check if airflow is stronger on one side—this helps preliminarily diagnose duct blockage. Don’t delay repairs to avoid compromising driving comfort or causing worse system damage. Visit a professional auto shop to inspect the blend door actuator or perform a refrigerant pressure test; sensor replacements are affordable. Regularly cleaning the cabin air filter prevents duct issues and avoids this lopsided cooling annoyance.
I find it quite annoying that the eighth-generation Accord's air conditioning blows cold on one side but not the other. The main culprits are likely a faulty blend door actuator or poor electrical connections, as the Accord's AC system often suffers from loosened electronic components due to prolonged vibration. It could also be due to refrigerant leakage or uneven distribution, causing higher temperatures on one side. At home, you can try this: turn on the AC and hold your hand over different vents to feel for temperature and airflow differences. If airflow is weak on one side, it's often due to clogged ducts; if airflow is strong but the temperature doesn't drop, check if the blend door is functioning properly. Addressing this promptly is crucial, as neglecting it can waste fuel or overburden the compressor. Inspection costs are low—just visit a reliable repair shop to diagnose the blend door and circuitry. This saves hassle and ensures a comfortable driving experience, while early repairs can extend the AC system's lifespan.
