| Questions |
Cause |
Remedy |
| Have you checked oil charge? |
Insufficient compressor oil |
Add oil to proper level |
| Are all refrigerant lines secured so that no rattling occurs? |
Tubing rattle |
Bend tubes away from other metal contacts |
| Are all mountings tight? |
Mountings loose |
Tighten |
| Is the noise coming from the compressor? Do you have LOW suction superheat? (Below 20¡) |
Oil slugging or refrigerant flooding back |
Adjust oil level or refrigerant charge. Check expansion valve for leak or oversize orifice |
