Automotive Ac System Diagnosis

Attach to the hoses and gauge set to the high and low side ports of your ac system.

Automotive ac system diagnosis.

When diagnosing an air conditioning issue it s easiest to begin at the compressor. This series is divided into three parts. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. The ac system operation ac system service and the.

Static pressure is the pressure with the system at rest compressor off for at least 30 mins. Ac system diagnosis by symptom ac system diagnosis. If the readings are very high then you may have a problem with air trapped in the system or an airflow problem with the condenser. If the pressures do not change at all when the compressor engages then the compressor has failed or there is a problem with the metering device.

If the clutch is not engaging use a voltmeter to check for voltage getting to the compressor. Start your ac pressure readings diagnostic by measuring the system s static pressure. Typically this results from a defective or failing compressor that breaks apart. As the internal parts disperse the metallic debris ends up throughout the entire system.

With the engine off for at least 30 minutes read the low and high pressure gauges. The typical complaint for an ac problem is the ac blows warm air.