Posts Tagged: expansion valve problems
When to Replace the Receiver Drier in Your Car
Why Skipping Receiver Drier Replacement Destroys AC Systems Quick Summary The receiver drier removes moisture, debris, and stores liquid refrigerant • You must replace the receiver drier anytime the AC system is opened • A saturated drier can cause poor cooling, corrosion, and compressor failure • Moisture is the biggest enemy of an AC system—and the drier is your only defense • Skipping replacement can turn a simple repair into a full system failure What Does a Receiver Drier Do in a Car AC System? The receiver drier is one … Read More
AC Fully Charged But Not Cold? The Most Common Causes
How Moisture and Air Contamination Destroy AC Performance Quick Summary If your car’s AC is fully charged but not cold, adding more refrigerant is almost never the answer. In my experience diagnosing automotive air conditioning systems, the most common causes are; • Air or moisture contamination • A clogged expansion valve or orifice tube • A failing compressor • A restricted condenser • Cooling fan problems • Blend door issues inside the HVAC housing. The key is understanding that refrigerant charge is only one part of the system. A properly … Read More