What to Do When Car Air Conditioning Is Not Cold Enough?
2 Answers
Here are the methods to deal with insufficient cooling in car air conditioning: 1. Add refrigerant: It might be due to a lack of refrigerant, and replenishing it should solve the issue. 2. Check the working state of the refrigerant compressor: If there is refrigerant, check whether the compressor is working. If it's not working, inspect the air conditioning pressure switch, temperature control switch, and their circuits for any issues. 3. Inspect the air conditioning system: Check the heat dissipation of the air conditioning system to see if the fan is working. Examine and clean the condenser. 4. Replace the air filter: It's best to replace the air filter as a dirty filter can also cause insufficient cooling.
Recently I noticed my car's AC isn't cooling effectively. First, pop the hood to check if the condenser is clogged with willow catkins - I learned this lesson the hard way last summer. If the radiator fins are dirty, gently rinsing them with a water hose shows immediate improvement. Then inspect whether the cabin air filter hasn't been replaced for two years - a clogged filter blocks cold airflow, and replacing it yourself is super easy, just buy the correct model online. Feel the temperatures of the high and low-pressure pipes; if there's little temperature difference, it might indicate low refrigerant level, which is best checked and recharged using professional equipment. Remember not to casually add refrigerant - you must confirm there are no leaks in the system first. Finally, check if the compressor belt is loose - once I heard strange noises caused by belt slippage reducing cooling efficiency.
