How to Determine if the Drier is Faulty?
2 Answers
Automotive air conditioning dryer tanks are used for filtration; if faulty, they can cause blockages leading to the air conditioning system not cooling. If the material inside the dryer filter is damaged, it can cause dirt blockage in the pipeline. If the dryer filter absorbs too much water, ice blockage can occur in the refrigeration system pipeline.
I drive a car that's been used for several years. When the air conditioning makes strange noises or the cooling effect deteriorates, I suspect the receiver-drier might be faulty. The simplest way is to open the engine hood, locate that canister-like component, and carefully check its surface for oil stains or wet marks. If there are signs of leakage, it's definitely broken. Additionally, start the air conditioning and listen to the operating sound—if there's a hissing or abnormal roaring noise, it's likely that the receiver-drier is clogged or failing. Test the cooling function; if the air isn't cold enough or takes longer to cool, this also points to a problem. Use a pressure gauge to measure—if the high and low-pressure readings are abnormally high or low, these are signals. Don't delay if you encounter these issues; drive to a repair shop promptly for professional equipment testing. Otherwise, it might affect the entire air conditioning system or even lead to compressor failure, resulting in higher costs. During regular maintenance, remember to ask the mechanic to check the receiver-drier's condition to avoid major trouble in advance.
