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 |
