Compressor HVAC: Testing and Inspection
1. INSTALL MANIFOLD GAUGE SETInstallation/Removal
2. START ENGINE
3. INSPECT COMPRESSOR FOR METALLIC SOUND
Check that there is a metallic sound from the compressor when the A/C switch is turn on.
If metallic sound is heard, replace the compressor assembly.
4. INSPECT PRESSURE OF REFRIGERATION SYSTEM
Use of Manifold Gauge Set
5. STOP ENGINE
6. INSPECT VISUALLY FOR LEAKAGE OF REFRIGERANT FROM SAFETY SEAL
Using a gas leak detector, check for leakage of refrigerant.
Leak Testing the System
If there is any leakage, replace the compressor assembly.