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