Symptom |
Condition |
Possible Cause |
Remedy |
Compressor noisy. |
Noise from inside compressor. |
• Bearing worn or damaged. • Defective cylinder and/or shaft. |
Disassemble and replace defective parts. |
Magnetic clutch noisy. |
Rattling noise when magnetic clutch is not engaged. |
Bearing worn or damaged. |
Replace bearing. |
Noise from piping. |
Piping not secured. |
Piping vibrating. Pulsating noise resonates into body. |
Secure piping. |
Noise from condenser. |
Condenser vibration prominent. |
Condenser mounting stay resonating with body. |
Secure by inserting rubber between stay and body. |
Noise produced by bracket. |
Rattles when touched, continuous rattling heard when operating. |
• Bracket cracked or broken. • Mounting bolts loose. |
• Replace. • Retighten bolts. |
Idler pulley noisy. |
• Clattering noise produced. • Rattles when touched. |
• Bearing broken. • Bracket cracked or loose. |
• Replace. • Replace or retighten. |
Noisy crankshaft pulley. |
Rattles. |
Improperly installed. |
Replace or retighten. |
Belt noisy |
• Belt deflection excessive • Belt side surface worn • Belt worn |
• Belt worn • Belt center misaligned • Worn belt causing belt slipping on pulleys and tensioner |
• Adjust tension • Align center • Replace belt |
Noisy belt tensioner |
Squealing belt and/or rumbling noise |
Tensioner bearing or tensioner spring weak |
Replace belt and tensioner |
