Air Compressor Common Faults and Solutions

1. Low Pressure
   Causes：

   • Intake valve failure
   • Clogged air filter
   • Incorrect pressure regulator settings

   Solutions：

   1. Check and clean/replace intake valve
   2. Replace air filter element
   3. Recalibrate pressure regulator

2. Unusual Noise
   Causes：

   • Worn bearings
   • Loose or worn belts
   • Damaged internal components

   Solutions：

   1. Inspect and replace bearings
   2. Adjust belt tension or replace belts
   3. Contact professionals for internal component repair

3. Overheating
   Causes：

   • Cooling system failure
   • High ambient temperature
   • Low oil level or poor oil quality

   Solutions：

   1. Clean radiator or check fan
   2. Improve ventilation
   3. Add or replace compressor oil

4. Oil Leakage
   Causes：

   • Worn seals
   • Excessive oil level
   • Loose or cracked oil lines

   Solutions：

   1. Replace seals
   2. Drain excess oil
   3. Tighten or replace oil lines

5. Motor Malfunction
   Causes：

   • Unstable power supply
   • Burned motor windings
   • Overload protection tripped

   Solutions：

   1. Check power supply and voltage
   2. Replace motor windings or motor
   3. Reduce load and reset protection device

6. Frequent Start-Stop Cycles
   Causes：

   • Faulty pressure switch
   • System leaks
   • Insufficient receiver tank capacity

   Solutions：

   1. Check and replace pressure switch
   2. Detect and repair leaks
   3. Increase receiver tank size or optimize air usage

7. Excessive Vibration
   Causes：

   • Loose mounting
   • Unbalanced rotating parts
   • Uneven foundation

   Solutions：

   1. Tighten mounting bolts
   2. Balance rotor or replace components
   3. Adjust foundation or add anti-vibration pads

Notes：

• Always disconnect power and release residual pressure before maintenance

• Regularly replace filters and lubricants